Finding the Fourth Proportional to 113,189.60, 156,003.93 and 82,910.57

Step by Step Solution

1. Step 1: Write the proportion equation
   113,189.60 : 156,003.93 = 82,910.57 : x
2. Step 2: Convert to fraction form
   113,189.60/156,003.93 = 82,910.57/x
3. Step 3: Cross multiply
   113,189.60x = 156,003.93 × 82,910.57
4. Step 4: Simplify right side
   113,189.60x = 12,934,374,758.54
5. Step 5: Solve for x
   x = 12,934,374,758.54/113,189.60
6. Step 6: Final answer
   x = 114,271.76