Finding the Fourth Proportional to 139,705.40, 192,783.57 and 76,041.83

Step by Step Solution

1. Step 1: Write the proportion equation
   139,705.40 : 192,783.57 = 76,041.83 : x
2. Step 2: Convert to fraction form
   139,705.40/192,783.57 = 76,041.83/x
3. Step 3: Cross multiply
   139,705.40x = 192,783.57 × 76,041.83
4. Step 4: Simplify right side
   139,705.40x = 14,659,615,456.73
5. Step 5: Solve for x
   x = 14,659,615,456.73/139,705.40
6. Step 6: Final answer
   x = 104,932.35