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Finding the Fourth Proportional to 39,702.33, 54,788.94 and 21,797.64

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Solution

The fourth proportional to 39,702.33, 54,788.94 and 21,797.64 is: 30,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,702.33 : 54,788.94 = 21,797.64 : x
  2. Step 2: Convert to fraction form
    39,702.33/54,788.94 = 21,797.64/x
  3. Step 3: Cross multiply
    39,702.33x = 54,788.94 × 21,797.64
  4. Step 4: Simplify right side
    39,702.33x = 1,194,269,590.10
  5. Step 5: Solve for x
    x = 1,194,269,590.10/39,702.33
  6. Step 6: Final answer
    x = 30,080.59

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