Finding the Fourth Proportional to 113,759.09, 156,994.88 and 65,376.57

Step by Step Solution

1. Step 1: Write the proportion equation
   113,759.09 : 156,994.88 = 65,376.57 : x
2. Step 2: Convert to fraction form
   113,759.09/156,994.88 = 65,376.57/x
3. Step 3: Cross multiply
   113,759.09x = 156,994.88 × 65,376.57
4. Step 4: Simplify right side
   113,759.09x = 10,263,786,761.96
5. Step 5: Solve for x
   x = 10,263,786,761.96/113,759.09
6. Step 6: Final answer
   x = 90,223.88