Finding the Fourth Proportional to 7,002.48, 9,663.12 and 3,858.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.48 : 9,663.12 = 3,858.72 : x
2. Step 2: Convert to fraction form
   7,002.48/9,663.12 = 3,858.72/x
3. Step 3: Cross multiply
   7,002.48x = 9,663.12 × 3,858.72
4. Step 4: Simplify right side
   7,002.48x = 37,287,274.41
5. Step 5: Solve for x
   x = 37,287,274.41/7,002.48
6. Step 6: Final answer
   x = 5,324.87