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Finding the Fourth Proportional to 19,057.17, 28,580.59 and 7,961.54

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Solution

The fourth proportional to 19,057.17, 28,580.59 and 7,961.54 is: 11,940.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,057.17 : 28,580.59 = 7,961.54 : x
  2. Step 2: Convert to fraction form
    19,057.17/28,580.59 = 7,961.54/x
  3. Step 3: Cross multiply
    19,057.17x = 28,580.59 × 7,961.54
  4. Step 4: Simplify right side
    19,057.17x = 227,545,327.80
  5. Step 5: Solve for x
    x = 227,545,327.80/19,057.17
  6. Step 6: Final answer
    x = 11,940.14

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