Finding the Fourth Proportional to 107,847.72, 148,841 and 64,841.28

Step by Step Solution

1. Step 1: Write the proportion equation
   107,847.72 : 148,841 = 64,841.28 : x
2. Step 2: Convert to fraction form
   107,847.72/148,841 = 64,841.28/x
3. Step 3: Cross multiply
   107,847.72x = 148,841 × 64,841.28
4. Step 4: Simplify right side
   107,847.72x = 9,651,040,956.48
5. Step 5: Solve for x
   x = 9,651,040,956.48/107,847.72
6. Step 6: Final answer
   x = 89,487.67