Finding the Fourth Proportional to 40,100.18, 55,352.07 and 23,111.21

Step by Step Solution

1. Step 1: Write the proportion equation
   40,100.18 : 55,352.07 = 23,111.21 : x
2. Step 2: Convert to fraction form
   40,100.18/55,352.07 = 23,111.21/x
3. Step 3: Cross multiply
   40,100.18x = 55,352.07 × 23,111.21
4. Step 4: Simplify right side
   40,100.18x = 1,279,253,036.94
5. Step 5: Solve for x
   x = 1,279,253,036.94/40,100.18
6. Step 6: Final answer
   x = 31,901.43