Finding the Fourth Proportional to 17,856.78, 24,648.06 and 10,406.22

Step by Step Solution

1. Step 1: Write the proportion equation
   17,856.78 : 24,648.06 = 10,406.22 : x
2. Step 2: Convert to fraction form
   17,856.78/24,648.06 = 10,406.22/x
3. Step 3: Cross multiply
   17,856.78x = 24,648.06 × 10,406.22
4. Step 4: Simplify right side
   17,856.78x = 256,493,134.93
5. Step 5: Solve for x
   x = 256,493,134.93/17,856.78
6. Step 6: Final answer
   x = 14,363.91