Finding the Fourth Proportional to 113,523.15, 156,661.99 and 65,804.18

Step by Step Solution

1. Step 1: Write the proportion equation
   113,523.15 : 156,661.99 = 65,804.18 : x
2. Step 2: Convert to fraction form
   113,523.15/156,661.99 = 65,804.18/x
3. Step 3: Cross multiply
   113,523.15x = 156,661.99 × 65,804.18
4. Step 4: Simplify right side
   113,523.15x = 10,309,013,789.12
5. Step 5: Solve for x
   x = 10,309,013,789.12/113,523.15
6. Step 6: Final answer
   x = 90,809.79