Finding the Fourth Proportional to 113,806.64, 157,029.71 and 65,399.22

Step by Step Solution

1. Step 1: Write the proportion equation
   113,806.64 : 157,029.71 = 65,399.22 : x
2. Step 2: Convert to fraction form
   113,806.64/157,029.71 = 65,399.22/x
3. Step 3: Cross multiply
   113,806.64x = 157,029.71 × 65,399.22
4. Step 4: Simplify right side
   113,806.64x = 10,269,620,714.32
5. Step 5: Solve for x
   x = 10,269,620,714.32/113,806.64
6. Step 6: Final answer
   x = 90,237.45