Finding the Fourth Proportional to 13,002.88, 17,942.42 and 7,337.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,002.88 : 17,942.42 = 7,337.30 : x
2. Step 2: Convert to fraction form
   13,002.88/17,942.42 = 7,337.30/x
3. Step 3: Cross multiply
   13,002.88x = 17,942.42 × 7,337.30
4. Step 4: Simplify right side
   13,002.88x = 131,648,918.27
5. Step 5: Solve for x
   x = 131,648,918.27/13,002.88
6. Step 6: Final answer
   x = 10,124.60