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Finding the Fourth Proportional to 42,849.34, 64,284.87 and 12,863.41

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Solution

The fourth proportional to 42,849.34, 64,284.87 and 12,863.41 is: 19,298.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,849.34 : 64,284.87 = 12,863.41 : x
  2. Step 2: Convert to fraction form
    42,849.34/64,284.87 = 12,863.41/x
  3. Step 3: Cross multiply
    42,849.34x = 64,284.87 × 12,863.41
  4. Step 4: Simplify right side
    42,849.34x = 826,922,527.13
  5. Step 5: Solve for x
    x = 826,922,527.13/42,849.34
  6. Step 6: Final answer
    x = 19,298.37

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