Finding the Fourth Proportional to 10,532.72, 15,795.60 and 3,511.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,532.72 : 15,795.60 = 3,511.20 : x
2. Step 2: Convert to fraction form
   10,532.72/15,795.60 = 3,511.20/x
3. Step 3: Cross multiply
   10,532.72x = 15,795.60 × 3,511.20
4. Step 4: Simplify right side
   10,532.72x = 55,461,510.72
5. Step 5: Solve for x
   x = 55,461,510.72/10,532.72
6. Step 6: Final answer
   x = 5,265.64