Finding the Fourth Proportional to 9,535.57, 13,151.85 and 8,354.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,535.57 : 13,151.85 = 8,354.59 : x
2. Step 2: Convert to fraction form
   9,535.57/13,151.85 = 8,354.59/x
3. Step 3: Cross multiply
   9,535.57x = 13,151.85 × 8,354.59
4. Step 4: Simplify right side
   9,535.57x = 109,878,314.49
5. Step 5: Solve for x
   x = 109,878,314.49/9,535.57
6. Step 6: Final answer
   x = 11,522.99