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Finding the Fourth Proportional to 45,908.70, 68,863.05 and 42,117.90

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Solution

The fourth proportional to 45,908.70, 68,863.05 and 42,117.90 is: 63,176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,908.70 : 68,863.05 = 42,117.90 : x
  2. Step 2: Convert to fraction form
    45,908.70/68,863.05 = 42,117.90/x
  3. Step 3: Cross multiply
    45,908.70x = 68,863.05 × 42,117.90
  4. Step 4: Simplify right side
    45,908.70x = 2,900,367,053.60
  5. Step 5: Solve for x
    x = 2,900,367,053.60/45,908.70
  6. Step 6: Final answer
    x = 63,176.85

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