Finding the Fourth Proportional to 8,748.82, 12,059.31 and 5,915.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,748.82 : 12,059.31 = 5,915.35 : x
2. Step 2: Convert to fraction form
   8,748.82/12,059.31 = 5,915.35/x
3. Step 3: Cross multiply
   8,748.82x = 12,059.31 × 5,915.35
4. Step 4: Simplify right side
   8,748.82x = 71,335,039.41
5. Step 5: Solve for x
   x = 71,335,039.41/8,748.82
6. Step 6: Final answer
   x = 8,153.68