Finding the Fourth Proportional to 12,790.08, 17,673.12 and 10,016.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,790.08 : 17,673.12 = 10,016.64 : x
2. Step 2: Convert to fraction form
   12,790.08/17,673.12 = 10,016.64/x
3. Step 3: Cross multiply
   12,790.08x = 17,673.12 × 10,016.64
4. Step 4: Simplify right side
   12,790.08x = 177,025,280.72
5. Step 5: Solve for x
   x = 177,025,280.72/12,790.08
6. Step 6: Final answer
   x = 13,840.83