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Finding the Fourth Proportional to 21,793.12, 30,067.88 and 12,837.35

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Solution

The fourth proportional to 21,793.12, 30,067.88 and 12,837.35 is: 17,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,793.12 : 30,067.88 = 12,837.35 : x
  2. Step 2: Convert to fraction form
    21,793.12/30,067.88 = 12,837.35/x
  3. Step 3: Cross multiply
    21,793.12x = 30,067.88 × 12,837.35
  4. Step 4: Simplify right side
    21,793.12x = 385,991,910.30
  5. Step 5: Solve for x
    x = 385,991,910.30/21,793.12
  6. Step 6: Final answer
    x = 17,711.64

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