Finding the Fourth Proportional to 113,218.20, 156,201.27 and 67,910.85

Step by Step Solution

1. Step 1: Write the proportion equation
   113,218.20 : 156,201.27 = 67,910.85 : x
2. Step 2: Convert to fraction form
   113,218.20/156,201.27 = 67,910.85/x
3. Step 3: Cross multiply
   113,218.20x = 156,201.27 × 67,910.85
4. Step 4: Simplify right side
   113,218.20x = 10,607,761,016.78
5. Step 5: Solve for x
   x = 10,607,761,016.78/113,218.20
6. Step 6: Final answer
   x = 93,693.07