Finding the Fourth Proportional to 10,535.68, 15,806.40 and 3,610.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,535.68 : 15,806.40 = 3,610.72 : x
2. Step 2: Convert to fraction form
   10,535.68/15,806.40 = 3,610.72/x
3. Step 3: Cross multiply
   10,535.68x = 15,806.40 × 3,610.72
4. Step 4: Simplify right side
   10,535.68x = 57,072,484.61
5. Step 5: Solve for x
   x = 57,072,484.61/10,535.68
6. Step 6: Final answer
   x = 5,417.07