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Finding the Fourth Proportional to 69,301.98, 103,965.78 and 21,929.00

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Solution

The fourth proportional to 69,301.98, 103,965.78 and 21,929.00 is: 32,897.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,301.98 : 103,965.78 = 21,929.00 : x
  2. Step 2: Convert to fraction form
    69,301.98/103,965.78 = 21,929.00/x
  3. Step 3: Cross multiply
    69,301.98x = 103,965.78 × 21,929.00
  4. Step 4: Simplify right side
    69,301.98x = 2,279,865,069.79
  5. Step 5: Solve for x
    x = 2,279,865,069.79/69,301.98
  6. Step 6: Final answer
    x = 32,897.55

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