Finding the Fourth Proportional to 10,631.58, 14,671.18 and 5,915.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,631.58 : 14,671.18 = 5,915.76 : x
2. Step 2: Convert to fraction form
   10,631.58/14,671.18 = 5,915.76/x
3. Step 3: Cross multiply
   10,631.58x = 14,671.18 × 5,915.76
4. Step 4: Simplify right side
   10,631.58x = 86,791,179.80
5. Step 5: Solve for x
   x = 86,791,179.80/10,631.58
6. Step 6: Final answer
   x = 8,163.53