Finding the Fourth Proportional to 7,008.42, 10,515.74 and 3,720.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,008.42 : 10,515.74 = 3,720.72 : x
2. Step 2: Convert to fraction form
   7,008.42/10,515.74 = 3,720.72/x
3. Step 3: Cross multiply
   7,008.42x = 10,515.74 × 3,720.72
4. Step 4: Simplify right side
   7,008.42x = 39,126,105.53
5. Step 5: Solve for x
   x = 39,126,105.53/7,008.42
6. Step 6: Final answer
   x = 5,582.73