Finding the Fourth Proportional to 10,978.88, 15,153.10 and 7,443.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.88 : 15,153.10 = 7,443.24 : x
2. Step 2: Convert to fraction form
   10,978.88/15,153.10 = 7,443.24/x
3. Step 3: Cross multiply
   10,978.88x = 15,153.10 × 7,443.24
4. Step 4: Simplify right side
   10,978.88x = 112,788,160.04
5. Step 5: Solve for x
   x = 112,788,160.04/10,978.88
6. Step 6: Final answer
   x = 10,273.19