Finding the Fourth Proportional to 42,073.52, 58,035.63 and 28,650.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,073.52 : 58,035.63 = 28,650.80 : x
2. Step 2: Convert to fraction form
   42,073.52/58,035.63 = 28,650.80/x
3. Step 3: Cross multiply
   42,073.52x = 58,035.63 × 28,650.80
4. Step 4: Simplify right side
   42,073.52x = 1,662,766,937.83
5. Step 5: Solve for x
   x = 1,662,766,937.83/42,073.52
6. Step 6: Final answer
   x = 39,520.51