Finding the Fourth Proportional to 113,608.20, 156,790.98 and 68,300.94

Step by Step Solution

1. Step 1: Write the proportion equation
   113,608.20 : 156,790.98 = 68,300.94 : x
2. Step 2: Convert to fraction form
   113,608.20/156,790.98 = 68,300.94/x
3. Step 3: Cross multiply
   113,608.20x = 156,790.98 × 68,300.94
4. Step 4: Simplify right side
   113,608.20x = 10,708,971,317.52
5. Step 5: Solve for x
   x = 10,708,971,317.52/113,608.20
6. Step 6: Final answer
   x = 94,262.31