Finding the Fourth Proportional to 42,074.52, 58,037.01 and 28,651.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,074.52 : 58,037.01 = 28,651.80 : x
2. Step 2: Convert to fraction form
   42,074.52/58,037.01 = 28,651.80/x
3. Step 3: Cross multiply
   42,074.52x = 58,037.01 × 28,651.80
4. Step 4: Simplify right side
   42,074.52x = 1,662,864,803.12
5. Step 5: Solve for x
   x = 1,662,864,803.12/42,074.52
6. Step 6: Final answer
   x = 39,521.90