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Finding the Fourth Proportional to 315,760.48, 473,672.31 and 91,126.42

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Solution

The fourth proportional to 315,760.48, 473,672.31 and 91,126.42 is: 136,698.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,760.48 : 473,672.31 = 91,126.42 : x
  2. Step 2: Convert to fraction form
    315,760.48/473,672.31 = 91,126.42/x
  3. Step 3: Cross multiply
    315,760.48x = 473,672.31 × 91,126.42
  4. Step 4: Simplify right side
    315,760.48x = 43,164,060,337.53
  5. Step 5: Solve for x
    x = 43,164,060,337.53/315,760.48
  6. Step 6: Final answer
    x = 136,698.74

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