Finding the Fourth Proportional to 17,818.20, 26,731.89 and 5,337.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,818.20 : 26,731.89 = 5,337.72 : x
2. Step 2: Convert to fraction form
   17,818.20/26,731.89 = 5,337.72/x
3. Step 3: Cross multiply
   17,818.20x = 26,731.89 × 5,337.72
4. Step 4: Simplify right side
   17,818.20x = 142,687,343.89
5. Step 5: Solve for x
   x = 142,687,343.89/17,818.20
6. Step 6: Final answer
   x = 8,007.96