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Finding the Fourth Proportional to 257,520.93, 386,452.77 and 105,842.40

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Solution

The fourth proportional to 257,520.93, 386,452.77 and 105,842.40 is: 158,834.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,520.93 : 386,452.77 = 105,842.40 : x
  2. Step 2: Convert to fraction form
    257,520.93/386,452.77 = 105,842.40/x
  3. Step 3: Cross multiply
    257,520.93x = 386,452.77 × 105,842.40
  4. Step 4: Simplify right side
    257,520.93x = 40,903,086,731.18
  5. Step 5: Solve for x
    x = 40,903,086,731.18/257,520.93
  6. Step 6: Final answer
    x = 158,834.03

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