Finding the Fourth Proportional to 7,110.72, 10,665.12 and 2,430.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,110.72 : 10,665.12 = 2,430.72 : x
2. Step 2: Convert to fraction form
   7,110.72/10,665.12 = 2,430.72/x
3. Step 3: Cross multiply
   7,110.72x = 10,665.12 × 2,430.72
4. Step 4: Simplify right side
   7,110.72x = 25,923,920.49
5. Step 5: Solve for x
   x = 25,923,920.49/7,110.72
6. Step 6: Final answer
   x = 3,645.75