Finding the Fourth Proportional to 9,501.30, 13,108.89 and 5,521.65

Step by Step Solution

1. Step 1: Write the proportion equation
   9,501.30 : 13,108.89 = 5,521.65 : x
2. Step 2: Convert to fraction form
   9,501.30/13,108.89 = 5,521.65/x
3. Step 3: Cross multiply
   9,501.30x = 13,108.89 × 5,521.65
4. Step 4: Simplify right side
   9,501.30x = 72,382,702.47
5. Step 5: Solve for x
   x = 72,382,702.47/9,501.30
6. Step 6: Final answer
   x = 7,618.19