Finding the Fourth Proportional to 11,360.76, 15,685.50 and 7,113.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,360.76 : 15,685.50 = 7,113.48 : x
2. Step 2: Convert to fraction form
   11,360.76/15,685.50 = 7,113.48/x
3. Step 3: Cross multiply
   11,360.76x = 15,685.50 × 7,113.48
4. Step 4: Simplify right side
   11,360.76x = 111,578,490.54
5. Step 5: Solve for x
   x = 111,578,490.54/11,360.76
6. Step 6: Final answer
   x = 9,821.39