Finding the Fourth Proportional to 43,911.50, 60,581.33 and 28,812.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,911.50 : 60,581.33 = 28,812.50 : x
2. Step 2: Convert to fraction form
   43,911.50/60,581.33 = 28,812.50/x
3. Step 3: Cross multiply
   43,911.50x = 60,581.33 × 28,812.50
4. Step 4: Simplify right side
   43,911.50x = 1,745,499,267.72
5. Step 5: Solve for x
   x = 1,745,499,267.72/43,911.50
6. Step 6: Final answer
   x = 39,750.39