Finding the Fourth Proportional to 9,082.51, 12,529.41 and 5,539.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,082.51 : 12,529.41 = 5,539.57 : x
2. Step 2: Convert to fraction form
   9,082.51/12,529.41 = 5,539.57/x
3. Step 3: Cross multiply
   9,082.51x = 12,529.41 × 5,539.57
4. Step 4: Simplify right side
   9,082.51x = 69,407,543.75
5. Step 5: Solve for x
   x = 69,407,543.75/9,082.51
6. Step 6: Final answer
   x = 7,641.89