Finding the Fourth Proportional to 9,082.19, 12,528.98 and 5,539.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,082.19 : 12,528.98 = 5,539.25 : x
2. Step 2: Convert to fraction form
   9,082.19/12,528.98 = 5,539.25/x
3. Step 3: Cross multiply
   9,082.19x = 12,528.98 × 5,539.25
4. Step 4: Simplify right side
   9,082.19x = 69,401,176.86
5. Step 5: Solve for x
   x = 69,401,176.86/9,082.19
6. Step 6: Final answer
   x = 7,641.46