Finding the Fourth Proportional to 12,598.28, 18,890.94 and 5,669

Step by Step Solution

1. Step 1: Write the proportion equation
   12,598.28 : 18,890.94 = 5,669 : x
2. Step 2: Convert to fraction form
   12,598.28/18,890.94 = 5,669/x
3. Step 3: Cross multiply
   12,598.28x = 18,890.94 × 5,669
4. Step 4: Simplify right side
   12,598.28x = 107,092,738.86
5. Step 5: Solve for x
   x = 107,092,738.86/12,598.28
6. Step 6: Final answer
   x = 8,500.58