Finding the Fourth Proportional to 7,002.39, 10,507.23 and 5,512.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.39 : 10,507.23 = 5,512.50 : x
2. Step 2: Convert to fraction form
   7,002.39/10,507.23 = 5,512.50/x
3. Step 3: Cross multiply
   7,002.39x = 10,507.23 × 5,512.50
4. Step 4: Simplify right side
   7,002.39x = 57,921,105.38
5. Step 5: Solve for x
   x = 57,921,105.38/7,002.39
6. Step 6: Final answer
   x = 8,271.62