Finding the Fourth Proportional to 14,086.61, 19,439.82 and 7,713.47

Step by Step Solution

1. Step 1: Write the proportion equation
   14,086.61 : 19,439.82 = 7,713.47 : x
2. Step 2: Convert to fraction form
   14,086.61/19,439.82 = 7,713.47/x
3. Step 3: Cross multiply
   14,086.61x = 19,439.82 × 7,713.47
4. Step 4: Simplify right side
   14,086.61x = 149,948,468.38
5. Step 5: Solve for x
   x = 149,948,468.38/14,086.61
6. Step 6: Final answer
   x = 10,644.75