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Finding the Fourth Proportional to 13,299.62, 19,949.31 and 5,091.62

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Solution

The fourth proportional to 13,299.62, 19,949.31 and 5,091.62 is: 7,637.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.62 : 19,949.31 = 5,091.62 : x
  2. Step 2: Convert to fraction form
    13,299.62/19,949.31 = 5,091.62/x
  3. Step 3: Cross multiply
    13,299.62x = 19,949.31 × 5,091.62
  4. Step 4: Simplify right side
    13,299.62x = 101,574,305.78
  5. Step 5: Solve for x
    x = 101,574,305.78/13,299.62
  6. Step 6: Final answer
    x = 7,637.38

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