Finding the Fourth Proportional to 9,111.15, 12,573.63 and 5,132.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.15 : 12,573.63 = 5,132.03 : x
2. Step 2: Convert to fraction form
   9,111.15/12,573.63 = 5,132.03/x
3. Step 3: Cross multiply
   9,111.15x = 12,573.63 × 5,132.03
4. Step 4: Simplify right side
   9,111.15x = 64,528,183.50
5. Step 5: Solve for x
   x = 64,528,183.50/9,111.15
6. Step 6: Final answer
   x = 7,082.33