Finding the Fourth Proportional to 11,061.04, 15,243.24 and 7,911.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,061.04 : 15,243.24 = 7,911.76 : x
2. Step 2: Convert to fraction form
   11,061.04/15,243.24 = 7,911.76/x
3. Step 3: Cross multiply
   11,061.04x = 15,243.24 × 7,911.76
4. Step 4: Simplify right side
   11,061.04x = 120,600,856.50
5. Step 5: Solve for x
   x = 120,600,856.50/11,061.04
6. Step 6: Final answer
   x = 10,903.21