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Finding the Fourth Proportional to 72,385.44, 108,585.78 and 19,794.97

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Solution

The fourth proportional to 72,385.44, 108,585.78 and 19,794.97 is: 29,694.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,385.44 : 108,585.78 = 19,794.97 : x
  2. Step 2: Convert to fraction form
    72,385.44/108,585.78 = 19,794.97/x
  3. Step 3: Cross multiply
    72,385.44x = 108,585.78 × 19,794.97
  4. Step 4: Simplify right side
    72,385.44x = 2,149,452,257.53
  5. Step 5: Solve for x
    x = 2,149,452,257.53/72,385.44
  6. Step 6: Final answer
    x = 29,694.54

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