Finding the Fourth Proportional to 16,669, 23,002.28 and 9,113.92

Step by Step Solution

1. Step 1: Write the proportion equation
   16,669 : 23,002.28 = 9,113.92 : x
2. Step 2: Convert to fraction form
   16,669/23,002.28 = 9,113.92/x
3. Step 3: Cross multiply
   16,669x = 23,002.28 × 9,113.92
4. Step 4: Simplify right side
   16,669x = 209,640,894.17
5. Step 5: Solve for x
   x = 209,640,894.17/16,669
6. Step 6: Final answer
   x = 12,576.69