Finding the Fourth Proportional to 8,741.20, 12,059.88 and 5,599.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,741.20 : 12,059.88 = 5,599.28 : x
2. Step 2: Convert to fraction form
   8,741.20/12,059.88 = 5,599.28/x
3. Step 3: Cross multiply
   8,741.20x = 12,059.88 × 5,599.28
4. Step 4: Simplify right side
   8,741.20x = 67,526,644.89
5. Step 5: Solve for x
   x = 67,526,644.89/8,741.20
6. Step 6: Final answer
   x = 7,725.10