Finding the Fourth Proportional to 10,638.72, 15,952.32 and 3,708

Step by Step Solution

1. Step 1: Write the proportion equation
   10,638.72 : 15,952.32 = 3,708 : x
2. Step 2: Convert to fraction form
   10,638.72/15,952.32 = 3,708/x
3. Step 3: Cross multiply
   10,638.72x = 15,952.32 × 3,708
4. Step 4: Simplify right side
   10,638.72x = 59,151,202.56
5. Step 5: Solve for x
   x = 59,151,202.56/10,638.72
6. Step 6: Final answer
   x = 5,559.99