Finding the Fourth Proportional to 28,674.24, 42,962.82 and 17,557.72

Step by Step Solution

1. Step 1: Write the proportion equation
   28,674.24 : 42,962.82 = 17,557.72 : x
2. Step 2: Convert to fraction form
   28,674.24/42,962.82 = 17,557.72/x
3. Step 3: Cross multiply
   28,674.24x = 42,962.82 × 17,557.72
4. Step 4: Simplify right side
   28,674.24x = 754,328,990.72
5. Step 5: Solve for x
   x = 754,328,990.72/28,674.24
6. Step 6: Final answer
   x = 26,306.86