Finding the Fourth Proportional to 113,803.79, 157,025.79 and 65,396.37

Step by Step Solution

1. Step 1: Write the proportion equation
   113,803.79 : 157,025.79 = 65,396.37 : x
2. Step 2: Convert to fraction form
   113,803.79/157,025.79 = 65,396.37/x
3. Step 3: Cross multiply
   113,803.79x = 157,025.79 × 65,396.37
4. Step 4: Simplify right side
   113,803.79x = 10,268,916,662.38
5. Step 5: Solve for x
   x = 10,268,916,662.38/113,803.79
6. Step 6: Final answer
   x = 90,233.52