Finding the Fourth Proportional to 40,156.67, 55,414.71 and 23,161.61

Step by Step Solution

1. Step 1: Write the proportion equation
   40,156.67 : 55,414.71 = 23,161.61 : x
2. Step 2: Convert to fraction form
   40,156.67/55,414.71 = 23,161.61/x
3. Step 3: Cross multiply
   40,156.67x = 55,414.71 × 23,161.61
4. Step 4: Simplify right side
   40,156.67x = 1,283,493,901.28
5. Step 5: Solve for x
   x = 1,283,493,901.28/40,156.67
6. Step 6: Final answer
   x = 31,962.16