Finding the Fourth Proportional to 10,216.68, 15,322.68 and 3,642.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,216.68 : 15,322.68 = 3,642.72 : x
2. Step 2: Convert to fraction form
   10,216.68/15,322.68 = 3,642.72/x
3. Step 3: Cross multiply
   10,216.68x = 15,322.68 × 3,642.72
4. Step 4: Simplify right side
   10,216.68x = 55,816,232.89
5. Step 5: Solve for x
   x = 55,816,232.89/10,216.68
6. Step 6: Final answer
   x = 5,463.25