Finding the Fourth Proportional to 139,832.58, 192,962.73 and 81,694.71

Step by Step Solution

1. Step 1: Write the proportion equation
   139,832.58 : 192,962.73 = 81,694.71 : x
2. Step 2: Convert to fraction form
   139,832.58/192,962.73 = 81,694.71/x
3. Step 3: Cross multiply
   139,832.58x = 192,962.73 × 81,694.71
4. Step 4: Simplify right side
   139,832.58x = 15,764,034,268.16
5. Step 5: Solve for x
   x = 15,764,034,268.16/139,832.58
6. Step 6: Final answer
   x = 112,735.06