Finding the Fourth Proportional to 9,012.72, 13,519.02 and 2,438.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012.72 : 13,519.02 = 2,438.88 : x
2. Step 2: Convert to fraction form
   9,012.72/13,519.02 = 2,438.88/x
3. Step 3: Cross multiply
   9,012.72x = 13,519.02 × 2,438.88
4. Step 4: Simplify right side
   9,012.72x = 32,971,267.50
5. Step 5: Solve for x
   x = 32,971,267.50/9,012.72
6. Step 6: Final answer
   x = 3,658.30