Finding the Fourth Proportional to 17,826.72, 26,727.12 and 10,906.08

Step by Step Solution

1. Step 1: Write the proportion equation
   17,826.72 : 26,727.12 = 10,906.08 : x
2. Step 2: Convert to fraction form
   17,826.72/26,727.12 = 10,906.08/x
3. Step 3: Cross multiply
   17,826.72x = 26,727.12 × 10,906.08
4. Step 4: Simplify right side
   17,826.72x = 291,488,108.89
5. Step 5: Solve for x
   x = 291,488,108.89/17,826.72
6. Step 6: Final answer
   x = 16,351.19