Finding the Fourth Proportional to 71,870.62, 107,862.42 and 49,839.04

Step by Step Solution

1. Step 1: Write the proportion equation
   71,870.62 : 107,862.42 = 49,839.04 : x
2. Step 2: Convert to fraction form
   71,870.62/107,862.42 = 49,839.04/x
3. Step 3: Cross multiply
   71,870.62x = 107,862.42 × 49,839.04
4. Step 4: Simplify right side
   71,870.62x = 5,375,759,464.88
5. Step 5: Solve for x
   x = 5,375,759,464.88/71,870.62
6. Step 6: Final answer
   x = 74,797.73