Finding the Fourth Proportional to 9,813.50, 13,542.49 and 5,337.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,813.50 : 13,542.49 = 5,337.15 : x
2. Step 2: Convert to fraction form
   9,813.50/13,542.49 = 5,337.15/x
3. Step 3: Cross multiply
   9,813.50x = 13,542.49 × 5,337.15
4. Step 4: Simplify right side
   9,813.50x = 72,278,330.77
5. Step 5: Solve for x
   x = 72,278,330.77/9,813.50
6. Step 6: Final answer
   x = 7,365.20