Finding the Fourth Proportional to 9,511.91, 13,126.48 and 5,535.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,511.91 : 13,126.48 = 5,535.72 : x
2. Step 2: Convert to fraction form
   9,511.91/13,126.48 = 5,535.72/x
3. Step 3: Cross multiply
   9,511.91x = 13,126.48 × 5,535.72
4. Step 4: Simplify right side
   9,511.91x = 72,664,517.87
5. Step 5: Solve for x
   x = 72,664,517.87/9,511.91
6. Step 6: Final answer
   x = 7,639.32