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Finding the Fourth Proportional to 19,471.80, 29,210.58 and 7,784.76

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Solution

The fourth proportional to 19,471.80, 29,210.58 and 7,784.76 is: 11,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.80 : 29,210.58 = 7,784.76 : x
  2. Step 2: Convert to fraction form
    19,471.80/29,210.58 = 7,784.76/x
  3. Step 3: Cross multiply
    19,471.80x = 29,210.58 × 7,784.76
  4. Step 4: Simplify right side
    19,471.80x = 227,397,354.76
  5. Step 5: Solve for x
    x = 227,397,354.76/19,471.80
  6. Step 6: Final answer
    x = 11,678.29

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