Finding the Fourth Proportional to 10,631.53, 14,671.15 and 5,915.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,631.53 : 14,671.15 = 5,915.71 : x
2. Step 2: Convert to fraction form
   10,631.53/14,671.15 = 5,915.71/x
3. Step 3: Cross multiply
   10,631.53x = 14,671.15 × 5,915.71
4. Step 4: Simplify right side
   10,631.53x = 86,790,268.77
5. Step 5: Solve for x
   x = 86,790,268.77/10,631.53
6. Step 6: Final answer
   x = 8,163.48