Finding the Fourth Proportional to 111,559.25, 153,953.60 and 60,571.97

Step by Step Solution

1. Step 1: Write the proportion equation
   111,559.25 : 153,953.60 = 60,571.97 : x
2. Step 2: Convert to fraction form
   111,559.25/153,953.60 = 60,571.97/x
3. Step 3: Cross multiply
   111,559.25x = 153,953.60 × 60,571.97
4. Step 4: Simplify right side
   111,559.25x = 9,325,271,767.96
5. Step 5: Solve for x
   x = 9,325,271,767.96/111,559.25
6. Step 6: Final answer
   x = 83,590.31