Finding the Fourth Proportional to 113,758.09, 156,993.50 and 65,375.57

Step by Step Solution

1. Step 1: Write the proportion equation
   113,758.09 : 156,993.50 = 65,375.57 : x
2. Step 2: Convert to fraction form
   113,758.09/156,993.50 = 65,375.57/x
3. Step 3: Cross multiply
   113,758.09x = 156,993.50 × 65,375.57
4. Step 4: Simplify right side
   113,758.09x = 10,263,539,548.80
5. Step 5: Solve for x
   x = 10,263,539,548.80/113,758.09
6. Step 6: Final answer
   x = 90,222.50