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Finding the Fourth Proportional to 67,129.88, 92,641.91 and 40,262.58

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Solution

The fourth proportional to 67,129.88, 92,641.91 and 40,262.58 is: 55,563.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,129.88 : 92,641.91 = 40,262.58 : x
  2. Step 2: Convert to fraction form
    67,129.88/92,641.91 = 40,262.58/x
  3. Step 3: Cross multiply
    67,129.88x = 92,641.91 × 40,262.58
  4. Step 4: Simplify right side
    67,129.88x = 3,730,002,111.41
  5. Step 5: Solve for x
    x = 3,730,002,111.41/67,129.88
  6. Step 6: Final answer
    x = 55,563.97

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