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Finding the Fourth Proportional to 48,178.77, 72,262.96 and 12,643.67

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Solution

The fourth proportional to 48,178.77, 72,262.96 and 12,643.67 is: 18,964.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,178.77 : 72,262.96 = 12,643.67 : x
  2. Step 2: Convert to fraction form
    48,178.77/72,262.96 = 12,643.67/x
  3. Step 3: Cross multiply
    48,178.77x = 72,262.96 × 12,643.67
  4. Step 4: Simplify right side
    48,178.77x = 913,669,019.46
  5. Step 5: Solve for x
    x = 913,669,019.46/48,178.77
  6. Step 6: Final answer
    x = 18,964.14

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