Finding the Fourth Proportional to 11,401.99, 15,735 and 7,153.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,401.99 : 15,735 = 7,153.22 : x
2. Step 2: Convert to fraction form
   11,401.99/15,735 = 7,153.22/x
3. Step 3: Cross multiply
   11,401.99x = 15,735 × 7,153.22
4. Step 4: Simplify right side
   11,401.99x = 112,555,916.70
5. Step 5: Solve for x
   x = 112,555,916.70/11,401.99
6. Step 6: Final answer
   x = 9,871.61