Finding the Fourth Proportional to 113,657.96, 156,856.53 and 65,910.89

Step by Step Solution

1. Step 1: Write the proportion equation
   113,657.96 : 156,856.53 = 65,910.89 : x
2. Step 2: Convert to fraction form
   113,657.96/156,856.53 = 65,910.89/x
3. Step 3: Cross multiply
   113,657.96x = 156,856.53 × 65,910.89
4. Step 4: Simplify right side
   113,657.96x = 10,338,553,494.61
5. Step 5: Solve for x
   x = 10,338,553,494.61/113,657.96
6. Step 6: Final answer
   x = 90,961.98