Finding the Fourth Proportional to 127,739.72, 191,439.78 and 67,755.83

Step by Step Solution

1. Step 1: Write the proportion equation
   127,739.72 : 191,439.78 = 67,755.83 : x
2. Step 2: Convert to fraction form
   127,739.72/191,439.78 = 67,755.83/x
3. Step 3: Cross multiply
   127,739.72x = 191,439.78 × 67,755.83
4. Step 4: Simplify right side
   127,739.72x = 12,971,161,188.92
5. Step 5: Solve for x
   x = 12,971,161,188.92/127,739.72
6. Step 6: Final answer
   x = 101,543.68