Finding the Fourth Proportional to 111,273.77, 153,557.89 and 65,324.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,273.77 : 153,557.89 = 65,324.42 : x
2. Step 2: Convert to fraction form
   111,273.77/153,557.89 = 65,324.42/x
3. Step 3: Cross multiply
   111,273.77x = 153,557.89 × 65,324.42
4. Step 4: Simplify right side
   111,273.77x = 10,031,080,100.67
5. Step 5: Solve for x
   x = 10,031,080,100.67/111,273.77
6. Step 6: Final answer
   x = 90,147.75