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Finding the Fourth Proportional to 14,693.20, 22,039.80 and 11,928.40

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Solution

The fourth proportional to 14,693.20, 22,039.80 and 11,928.40 is: 17,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,693.20 : 22,039.80 = 11,928.40 : x
  2. Step 2: Convert to fraction form
    14,693.20/22,039.80 = 11,928.40/x
  3. Step 3: Cross multiply
    14,693.20x = 22,039.80 × 11,928.40
  4. Step 4: Simplify right side
    14,693.20x = 262,899,550.32
  5. Step 5: Solve for x
    x = 262,899,550.32/14,693.20
  6. Step 6: Final answer
    x = 17,892.60

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