Finding the Fourth Proportional to 74,123.93, 102,290.89 and 40,132.42

Step by Step Solution

1. Step 1: Write the proportion equation
   74,123.93 : 102,290.89 = 40,132.42 : x
2. Step 2: Convert to fraction form
   74,123.93/102,290.89 = 40,132.42/x
3. Step 3: Cross multiply
   74,123.93x = 102,290.89 × 40,132.42
4. Step 4: Simplify right side
   74,123.93x = 4,105,180,561.15
5. Step 5: Solve for x
   x = 4,105,180,561.15/74,123.93
6. Step 6: Final answer
   x = 55,382.66