Finding the Fourth Proportional to 17,731.40, 26,613.50 and 8,972.46

Step by Step Solution

1. Step 1: Write the proportion equation
   17,731.40 : 26,613.50 = 8,972.46 : x
2. Step 2: Convert to fraction form
   17,731.40/26,613.50 = 8,972.46/x
3. Step 3: Cross multiply
   17,731.40x = 26,613.50 × 8,972.46
4. Step 4: Simplify right side
   17,731.40x = 238,788,519.35
5. Step 5: Solve for x
   x = 238,788,519.35/17,731.40
6. Step 6: Final answer
   x = 13,466.99