Finding the Fourth Proportional to 71,913.83, 99,244.49 and 40,082.96

Step by Step Solution

1. Step 1: Write the proportion equation
   71,913.83 : 99,244.49 = 40,082.96 : x
2. Step 2: Convert to fraction form
   71,913.83/99,244.49 = 40,082.96/x
3. Step 3: Cross multiply
   71,913.83x = 99,244.49 × 40,082.96
4. Step 4: Simplify right side
   71,913.83x = 3,978,012,922.89
5. Step 5: Solve for x
   x = 3,978,012,922.89/71,913.83
6. Step 6: Final answer
   x = 55,316.38