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Finding the Fourth Proportional to 12,678.99, 19,014.81 and 4,885.98

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Solution

The fourth proportional to 12,678.99, 19,014.81 and 4,885.98 is: 7,327.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678.99 : 19,014.81 = 4,885.98 : x
  2. Step 2: Convert to fraction form
    12,678.99/19,014.81 = 4,885.98/x
  3. Step 3: Cross multiply
    12,678.99x = 19,014.81 × 4,885.98
  4. Step 4: Simplify right side
    12,678.99x = 92,905,981.36
  5. Step 5: Solve for x
    x = 92,905,981.36/12,678.99
  6. Step 6: Final answer
    x = 7,327.55

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