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Finding the Fourth Proportional to 19,232.60, 28,848.90 and 10,909.40

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Solution

The fourth proportional to 19,232.60, 28,848.90 and 10,909.40 is: 16,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,232.60 : 28,848.90 = 10,909.40 : x
  2. Step 2: Convert to fraction form
    19,232.60/28,848.90 = 10,909.40/x
  3. Step 3: Cross multiply
    19,232.60x = 28,848.90 × 10,909.40
  4. Step 4: Simplify right side
    19,232.60x = 314,724,189.66
  5. Step 5: Solve for x
    x = 314,724,189.66/19,232.60
  6. Step 6: Final answer
    x = 16,364.10

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