Finding the Fourth Proportional to 14,086.89, 19,440.13 and 7,713.38

Step by Step Solution

1. Step 1: Write the proportion equation
   14,086.89 : 19,440.13 = 7,713.38 : x
2. Step 2: Convert to fraction form
   14,086.89/19,440.13 = 7,713.38/x
3. Step 3: Cross multiply
   14,086.89x = 19,440.13 × 7,713.38
4. Step 4: Simplify right side
   14,086.89x = 149,949,022.67
5. Step 5: Solve for x
   x = 149,949,022.67/14,086.89
6. Step 6: Final answer
   x = 10,644.58