Finding the Fourth Proportional to 11,160.24, 15,404.91 and 7,810.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,160.24 : 15,404.91 = 7,810.04 : x
2. Step 2: Convert to fraction form
   11,160.24/15,404.91 = 7,810.04/x
3. Step 3: Cross multiply
   11,160.24x = 15,404.91 × 7,810.04
4. Step 4: Simplify right side
   11,160.24x = 120,312,963.30
5. Step 5: Solve for x
   x = 120,312,963.30/11,160.24
6. Step 6: Final answer
   x = 10,780.50