Finding the Fourth Proportional to 22,105.17, 33,113.34 and 10,978.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,105.17 : 33,113.34 = 10,978.20 : x
2. Step 2: Convert to fraction form
   22,105.17/33,113.34 = 10,978.20/x
3. Step 3: Cross multiply
   22,105.17x = 33,113.34 × 10,978.20
4. Step 4: Simplify right side
   22,105.17x = 363,524,869.19
5. Step 5: Solve for x
   x = 363,524,869.19/22,105.17
6. Step 6: Final answer
   x = 16,445.24