Finding the Fourth Proportional to 39,766.72, 59,496 and 28,698.88

Step by Step Solution

1. Step 1: Write the proportion equation
   39,766.72 : 59,496 = 28,698.88 : x
2. Step 2: Convert to fraction form
   39,766.72/59,496 = 28,698.88/x
3. Step 3: Cross multiply
   39,766.72x = 59,496 × 28,698.88
4. Step 4: Simplify right side
   39,766.72x = 1,707,468,564.48
5. Step 5: Solve for x
   x = 1,707,468,564.48/39,766.72
6. Step 6: Final answer
   x = 42,937.12