Finding the Fourth Proportional to 42,445.76, 58,593.10 and 28,651.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,445.76 : 58,593.10 = 28,651.08 : x
2. Step 2: Convert to fraction form
   42,445.76/58,593.10 = 28,651.08/x
3. Step 3: Cross multiply
   42,445.76x = 58,593.10 × 28,651.08
4. Step 4: Simplify right side
   42,445.76x = 1,678,755,595.55
5. Step 5: Solve for x
   x = 1,678,755,595.55/42,445.76
6. Step 6: Final answer
   x = 39,550.61