Finding the Fourth Proportional to 42,674.58, 58,846.95 and 28,329.21

Step by Step Solution

1. Step 1: Write the proportion equation
   42,674.58 : 58,846.95 = 28,329.21 : x
2. Step 2: Convert to fraction form
   42,674.58/58,846.95 = 28,329.21/x
3. Step 3: Cross multiply
   42,674.58x = 58,846.95 × 28,329.21
4. Step 4: Simplify right side
   42,674.58x = 1,667,087,604.41
5. Step 5: Solve for x
   x = 1,667,087,604.41/42,674.58
6. Step 6: Final answer
   x = 39,065.12