Finding the Fourth Proportional to 64,443.80, 96,626.85 and 28,898.69

Step by Step Solution

1. Step 1: Write the proportion equation
   64,443.80 : 96,626.85 = 28,898.69 : x
2. Step 2: Convert to fraction form
   64,443.80/96,626.85 = 28,898.69/x
3. Step 3: Cross multiply
   64,443.80x = 96,626.85 × 28,898.69
4. Step 4: Simplify right side
   64,443.80x = 2,792,388,900.69
5. Step 5: Solve for x
   x = 2,792,388,900.69/64,443.80
6. Step 6: Final answer
   x = 43,330.61