Finding the Fourth Proportional to 139,219.74, 192,055.59 and 82,591.02

Step by Step Solution

1. Step 1: Write the proportion equation
   139,219.74 : 192,055.59 = 82,591.02 : x
2. Step 2: Convert to fraction form
   139,219.74/192,055.59 = 82,591.02/x
3. Step 3: Cross multiply
   139,219.74x = 192,055.59 × 82,591.02
4. Step 4: Simplify right side
   139,219.74x = 15,862,067,074.80
5. Step 5: Solve for x
   x = 15,862,067,074.80/139,219.74
6. Step 6: Final answer
   x = 113,935.47