Finding the Fourth Proportional to 9,521.61, 14,280.12 and 3,674.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,521.61 : 14,280.12 = 3,674.49 : x
2. Step 2: Convert to fraction form
   9,521.61/14,280.12 = 3,674.49/x
3. Step 3: Cross multiply
   9,521.61x = 14,280.12 × 3,674.49
4. Step 4: Simplify right side
   9,521.61x = 52,472,158.14
5. Step 5: Solve for x
   x = 52,472,158.14/9,521.61
6. Step 6: Final answer
   x = 5,510.85