Finding the Fourth Proportional to 9,061.81, 12,505.31 and 5,525.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,061.81 : 12,505.31 = 5,525.02 : x
2. Step 2: Convert to fraction form
   9,061.81/12,505.31 = 5,525.02/x
3. Step 3: Cross multiply
   9,061.81x = 12,505.31 × 5,525.02
4. Step 4: Simplify right side
   9,061.81x = 69,092,087.86
5. Step 5: Solve for x
   x = 69,092,087.86/9,061.81
6. Step 6: Final answer
   x = 7,624.54