Finding the Fourth Proportional to 10,669.14, 16,011.88 and 8,594.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,669.14 : 16,011.88 = 8,594.18 : x
2. Step 2: Convert to fraction form
   10,669.14/16,011.88 = 8,594.18/x
3. Step 3: Cross multiply
   10,669.14x = 16,011.88 × 8,594.18
4. Step 4: Simplify right side
   10,669.14x = 137,608,978.86
5. Step 5: Solve for x
   x = 137,608,978.86/10,669.14
6. Step 6: Final answer
   x = 12,897.85