Finding the Fourth Proportional to 11,298.22, 15,586.27 and 7,108.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,298.22 : 15,586.27 = 7,108.78 : x
2. Step 2: Convert to fraction form
   11,298.22/15,586.27 = 7,108.78/x
3. Step 3: Cross multiply
   11,298.22x = 15,586.27 × 7,108.78
4. Step 4: Simplify right side
   11,298.22x = 110,799,364.45
5. Step 5: Solve for x
   x = 110,799,364.45/11,298.22
6. Step 6: Final answer
   x = 9,806.80