Finding the Fourth Proportional to 7,327.68, 10,988.64 and 3,862.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,327.68 : 10,988.64 = 3,862.72 : x
2. Step 2: Convert to fraction form
   7,327.68/10,988.64 = 3,862.72/x
3. Step 3: Cross multiply
   7,327.68x = 10,988.64 × 3,862.72
4. Step 4: Simplify right side
   7,327.68x = 42,446,039.50
5. Step 5: Solve for x
   x = 42,446,039.50/7,327.68
6. Step 6: Final answer
   x = 5,792.56