Finding the Fourth Proportional to 22,461.48, 30,978.18 and 16,862.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,461.48 : 30,978.18 = 16,862.76 : x
2. Step 2: Convert to fraction form
   22,461.48/30,978.18 = 16,862.76/x
3. Step 3: Cross multiply
   22,461.48x = 30,978.18 × 16,862.76
4. Step 4: Simplify right side
   22,461.48x = 522,377,614.58
5. Step 5: Solve for x
   x = 522,377,614.58/22,461.48
6. Step 6: Final answer
   x = 23,256.60