Finding the Fourth Proportional to 6,514.72, 8,990.29 and 3,530.63

Step by Step Solution

1. Step 1: Write the proportion equation
   6,514.72 : 8,990.29 = 3,530.63 : x
2. Step 2: Convert to fraction form
   6,514.72/8,990.29 = 3,530.63/x
3. Step 3: Cross multiply
   6,514.72x = 8,990.29 × 3,530.63
4. Step 4: Simplify right side
   6,514.72x = 31,741,333.80
5. Step 5: Solve for x
   x = 31,741,333.80/6,514.72
6. Step 6: Final answer
   x = 4,872.25