Finding the Fourth Proportional to 83,718.62, 115,480.50 and 49,704.02

Step by Step Solution

1. Step 1: Write the proportion equation
   83,718.62 : 115,480.50 = 49,704.02 : x
2. Step 2: Convert to fraction form
   83,718.62/115,480.50 = 49,704.02/x
3. Step 3: Cross multiply
   83,718.62x = 115,480.50 × 49,704.02
4. Step 4: Simplify right side
   83,718.62x = 5,739,845,081.61
5. Step 5: Solve for x
   x = 5,739,845,081.61/83,718.62
6. Step 6: Final answer
   x = 68,561.15