Finding the Fourth Proportional to 111,108.60, 153,305.46 and 65,763.90

Step by Step Solution

1. Step 1: Write the proportion equation
   111,108.60 : 153,305.46 = 65,763.90 : x
2. Step 2: Convert to fraction form
   111,108.60/153,305.46 = 65,763.90/x
3. Step 3: Cross multiply
   111,108.60x = 153,305.46 × 65,763.90
4. Step 4: Simplify right side
   111,108.60x = 10,081,964,940.89
5. Step 5: Solve for x
   x = 10,081,964,940.89/111,108.60
6. Step 6: Final answer
   x = 90,739.74