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Finding the Fourth Proportional to 92,864.59, 128,149.55 and 50,422.15

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Solution

The fourth proportional to 92,864.59, 128,149.55 and 50,422.15 is: 69,580.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,864.59 : 128,149.55 = 50,422.15 : x
  2. Step 2: Convert to fraction form
    92,864.59/128,149.55 = 50,422.15/x
  3. Step 3: Cross multiply
    92,864.59x = 128,149.55 × 50,422.15
  4. Step 4: Simplify right side
    92,864.59x = 6,461,575,580.42
  5. Step 5: Solve for x
    x = 6,461,575,580.42/92,864.59
  6. Step 6: Final answer
    x = 69,580.62

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