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Finding the Fourth Proportional to 13,249.78, 19,856.04 and 10,464.22

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Solution

The fourth proportional to 13,249.78, 19,856.04 and 10,464.22 is: 15,681.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.78 : 19,856.04 = 10,464.22 : x
  2. Step 2: Convert to fraction form
    13,249.78/19,856.04 = 10,464.22/x
  3. Step 3: Cross multiply
    13,249.78x = 19,856.04 × 10,464.22
  4. Step 4: Simplify right side
    13,249.78x = 207,777,970.89
  5. Step 5: Solve for x
    x = 207,777,970.89/13,249.78
  6. Step 6: Final answer
    x = 15,681.62

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