Finding the Fourth Proportional to 10,677.89, 14,732.37 and 6,139.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,677.89 : 14,732.37 = 6,139.87 : x
2. Step 2: Convert to fraction form
   10,677.89/14,732.37 = 6,139.87/x
3. Step 3: Cross multiply
   10,677.89x = 14,732.37 × 6,139.87
4. Step 4: Simplify right side
   10,677.89x = 90,454,836.59
5. Step 5: Solve for x
   x = 90,454,836.59/10,677.89
6. Step 6: Final answer
   x = 8,471.23