Finding the Fourth Proportional to 22,155.34, 30,572.67 and 12,726.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,155.34 : 30,572.67 = 12,726.94 : x
2. Step 2: Convert to fraction form
   22,155.34/30,572.67 = 12,726.94/x
3. Step 3: Cross multiply
   22,155.34x = 30,572.67 × 12,726.94
4. Step 4: Simplify right side
   22,155.34x = 389,096,536.73
5. Step 5: Solve for x
   x = 389,096,536.73/22,155.34
6. Step 6: Final answer
   x = 17,562.20