Finding the Fourth Proportional to 40,478.78, 55,851.42 and 24,338.72

Step by Step Solution

1. Step 1: Write the proportion equation
   40,478.78 : 55,851.42 = 24,338.72 : x
2. Step 2: Convert to fraction form
   40,478.78/55,851.42 = 24,338.72/x
3. Step 3: Cross multiply
   40,478.78x = 55,851.42 × 24,338.72
4. Step 4: Simplify right side
   40,478.78x = 1,359,352,072.98
5. Step 5: Solve for x
   x = 1,359,352,072.98/40,478.78
6. Step 6: Final answer
   x = 33,581.84