Finding the Fourth Proportional to 9,501.68, 13,111.19 and 5,522.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,501.68 : 13,111.19 = 5,522.15 : x
2. Step 2: Convert to fraction form
   9,501.68/13,111.19 = 5,522.15/x
3. Step 3: Cross multiply
   9,501.68x = 13,111.19 × 5,522.15
4. Step 4: Simplify right side
   9,501.68x = 72,401,957.86
5. Step 5: Solve for x
   x = 72,401,957.86/9,501.68
6. Step 6: Final answer
   x = 7,619.91