Finding the Fourth Proportional to 28,314.87, 42,472.43 and 8,593.59

Step by Step Solution

1. Step 1: Write the proportion equation
   28,314.87 : 42,472.43 = 8,593.59 : x
2. Step 2: Convert to fraction form
   28,314.87/42,472.43 = 8,593.59/x
3. Step 3: Cross multiply
   28,314.87x = 42,472.43 × 8,593.59
4. Step 4: Simplify right side
   28,314.87x = 364,990,846.59
5. Step 5: Solve for x
   x = 364,990,846.59/28,314.87
6. Step 6: Final answer
   x = 12,890.43