Finding the Fourth Proportional to 10,391.10, 15,596.37 and 5,132.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,391.10 : 15,596.37 = 5,132.05 : x
2. Step 2: Convert to fraction form
   10,391.10/15,596.37 = 5,132.05/x
3. Step 3: Cross multiply
   10,391.10x = 15,596.37 × 5,132.05
4. Step 4: Simplify right side
   10,391.10x = 80,041,325.00
5. Step 5: Solve for x
   x = 80,041,325.00/10,391.10
6. Step 6: Final answer
   x = 7,702.87