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Finding the Fourth Proportional to 92,178.44, 138,139.06 and 69,670.56

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Solution

The fourth proportional to 92,178.44, 138,139.06 and 69,670.56 is: 104,408.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,178.44 : 138,139.06 = 69,670.56 : x
  2. Step 2: Convert to fraction form
    92,178.44/138,139.06 = 69,670.56/x
  3. Step 3: Cross multiply
    92,178.44x = 138,139.06 × 69,670.56
  4. Step 4: Simplify right side
    92,178.44x = 9,624,225,668.07
  5. Step 5: Solve for x
    x = 9,624,225,668.07/92,178.44
  6. Step 6: Final answer
    x = 104,408.64

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