Finding the Fourth Proportional to 111,843.72, 154,350.72 and 64,105.02

Step by Step Solution

1. Step 1: Write the proportion equation
   111,843.72 : 154,350.72 = 64,105.02 : x
2. Step 2: Convert to fraction form
   111,843.72/154,350.72 = 64,105.02/x
3. Step 3: Cross multiply
   111,843.72x = 154,350.72 × 64,105.02
4. Step 4: Simplify right side
   111,843.72x = 9,894,655,992.61
5. Step 5: Solve for x
   x = 9,894,655,992.61/111,843.72
6. Step 6: Final answer
   x = 88,468.59