Finding the Fourth Proportional to 139,451.22, 192,459.06 and 82,862.64

Step by Step Solution

1. Step 1: Write the proportion equation
   139,451.22 : 192,459.06 = 82,862.64 : x
2. Step 2: Convert to fraction form
   139,451.22/192,459.06 = 82,862.64/x
3. Step 3: Cross multiply
   139,451.22x = 192,459.06 × 82,862.64
4. Step 4: Simplify right side
   139,451.22x = 15,947,665,803.52
5. Step 5: Solve for x
   x = 15,947,665,803.52/139,451.22
6. Step 6: Final answer
   x = 114,360.17