Finding the Fourth Proportional to 111,560.75, 153,938.34 and 65,622.48

Step by Step Solution

1. Step 1: Write the proportion equation
   111,560.75 : 153,938.34 = 65,622.48 : x
2. Step 2: Convert to fraction form
   111,560.75/153,938.34 = 65,622.48/x
3. Step 3: Cross multiply
   111,560.75x = 153,938.34 × 65,622.48
4. Step 4: Simplify right side
   111,560.75x = 10,101,814,868.19
5. Step 5: Solve for x
   x = 10,101,814,868.19/111,560.75
6. Step 6: Final answer
   x = 90,549.90