Finding the Fourth Proportional to 9,502.45, 13,111.11 and 5,521.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,502.45 : 13,111.11 = 5,521.18 : x
2. Step 2: Convert to fraction form
   9,502.45/13,111.11 = 5,521.18/x
3. Step 3: Cross multiply
   9,502.45x = 13,111.11 × 5,521.18
4. Step 4: Simplify right side
   9,502.45x = 72,388,798.31
5. Step 5: Solve for x
   x = 72,388,798.31/9,502.45
6. Step 6: Final answer
   x = 7,617.91