Finding the Fourth Proportional to 17,734.72, 26,606.40 and 5,422.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,734.72 : 26,606.40 = 5,422.72 : x
2. Step 2: Convert to fraction form
   17,734.72/26,606.40 = 5,422.72/x
3. Step 3: Cross multiply
   17,734.72x = 26,606.40 × 5,422.72
4. Step 4: Simplify right side
   17,734.72x = 144,279,057.41
5. Step 5: Solve for x
   x = 144,279,057.41/17,734.72
6. Step 6: Final answer
   x = 8,135.40