Finding the Fourth Proportional to 139,377.96, 192,342.06 and 82,019.52

Step by Step Solution

1. Step 1: Write the proportion equation
   139,377.96 : 192,342.06 = 82,019.52 : x
2. Step 2: Convert to fraction form
   139,377.96/192,342.06 = 82,019.52/x
3. Step 3: Cross multiply
   139,377.96x = 192,342.06 × 82,019.52
4. Step 4: Simplify right side
   139,377.96x = 15,775,803,437.01
5. Step 5: Solve for x
   x = 15,775,803,437.01/139,377.96
6. Step 6: Final answer
   x = 113,187.22