Finding the Fourth Proportional to 113,165.36, 156,162.60 and 65,414.16

Step by Step Solution

1. Step 1: Write the proportion equation
   113,165.36 : 156,162.60 = 65,414.16 : x
2. Step 2: Convert to fraction form
   113,165.36/156,162.60 = 65,414.16/x
3. Step 3: Cross multiply
   113,165.36x = 156,162.60 × 65,414.16
4. Step 4: Simplify right side
   113,165.36x = 10,215,245,302.42
5. Step 5: Solve for x
   x = 10,215,245,302.42/113,165.36
6. Step 6: Final answer
   x = 90,268.31