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Finding the Fourth Proportional to 92,878.70, 139,275.52 and 29,686.55

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Solution

The fourth proportional to 92,878.70, 139,275.52 and 29,686.55 is: 44,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,878.70 : 139,275.52 = 29,686.55 : x
  2. Step 2: Convert to fraction form
    92,878.70/139,275.52 = 29,686.55/x
  3. Step 3: Cross multiply
    92,878.70x = 139,275.52 × 29,686.55
  4. Step 4: Simplify right side
    92,878.70x = 4,134,608,917.66
  5. Step 5: Solve for x
    x = 4,134,608,917.66/92,878.70
  6. Step 6: Final answer
    x = 44,516.23

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