Finding the Fourth Proportional to 139,587.56, 192,567.30 and 82,966.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,587.56 : 192,567.30 = 82,966.76 : x
2. Step 2: Convert to fraction form
   139,587.56/192,567.30 = 82,966.76/x
3. Step 3: Cross multiply
   139,587.56x = 192,567.30 × 82,966.76
4. Step 4: Simplify right side
   139,587.56x = 15,976,684,962.95
5. Step 5: Solve for x
   x = 15,976,684,962.95/139,587.56
6. Step 6: Final answer
   x = 114,456.37