Finding the Fourth Proportional to 91,932.18, 126,881.18 and 85,928.86

Step by Step Solution

1. Step 1: Write the proportion equation
   91,932.18 : 126,881.18 = 85,928.86 : x
2. Step 2: Convert to fraction form
   91,932.18/126,881.18 = 85,928.86/x
3. Step 3: Cross multiply
   91,932.18x = 126,881.18 × 85,928.86
4. Step 4: Simplify right side
   91,932.18x = 10,902,755,152.85
5. Step 5: Solve for x
   x = 10,902,755,152.85/91,932.18
6. Step 6: Final answer
   x = 118,595.63