Finding the Fourth Proportional to 113,525.15, 156,664.75 and 65,806.18

Step by Step Solution

1. Step 1: Write the proportion equation
   113,525.15 : 156,664.75 = 65,806.18 : x
2. Step 2: Convert to fraction form
   113,525.15/156,664.75 = 65,806.18/x
3. Step 3: Cross multiply
   113,525.15x = 156,664.75 × 65,806.18
4. Step 4: Simplify right side
   113,525.15x = 10,309,508,738.16
5. Step 5: Solve for x
   x = 10,309,508,738.16/113,525.15
6. Step 6: Final answer
   x = 90,812.55