Finding the Fourth Proportional to 12,345.75, 17,037.18 and 8,626.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,345.75 : 17,037.18 = 8,626.23 : x
2. Step 2: Convert to fraction form
   12,345.75/17,037.18 = 8,626.23/x
3. Step 3: Cross multiply
   12,345.75x = 17,037.18 × 8,626.23
4. Step 4: Simplify right side
   12,345.75x = 146,966,633.23
5. Step 5: Solve for x
   x = 146,966,633.23/12,345.75
6. Step 6: Final answer
   x = 11,904.23