Finding the Fourth Proportional to 9,813.96, 13,543.56 and 5,337.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,813.96 : 13,543.56 = 5,337.90 : x
2. Step 2: Convert to fraction form
   9,813.96/13,543.56 = 5,337.90/x
3. Step 3: Cross multiply
   9,813.96x = 13,543.56 × 5,337.90
4. Step 4: Simplify right side
   9,813.96x = 72,294,168.92
5. Step 5: Solve for x
   x = 72,294,168.92/9,813.96
6. Step 6: Final answer
   x = 7,366.46