Finding the Fourth Proportional to 111,105.72, 153,287.64 and 63,324.48

Step by Step Solution

1. Step 1: Write the proportion equation
   111,105.72 : 153,287.64 = 63,324.48 : x
2. Step 2: Convert to fraction form
   111,105.72/153,287.64 = 63,324.48/x
3. Step 3: Cross multiply
   111,105.72x = 153,287.64 × 63,324.48
4. Step 4: Simplify right side
   111,105.72x = 9,706,860,093.43
5. Step 5: Solve for x
   x = 9,706,860,093.43/111,105.72
6. Step 6: Final answer
   x = 87,365.98