Finding the Fourth Proportional to 111,563.56, 153,942.22 and 65,625.30

Step by Step Solution

1. Step 1: Write the proportion equation
   111,563.56 : 153,942.22 = 65,625.30 : x
2. Step 2: Convert to fraction form
   111,563.56/153,942.22 = 65,625.30/x
3. Step 3: Cross multiply
   111,563.56x = 153,942.22 × 65,625.30
4. Step 4: Simplify right side
   111,563.56x = 10,102,504,370.17
5. Step 5: Solve for x
   x = 10,102,504,370.17/111,563.56
6. Step 6: Final answer
   x = 90,553.80