Finding the Fourth Proportional to 10,225.53, 15,309.72 and 5,528.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,225.53 : 15,309.72 = 5,528.71 : x
2. Step 2: Convert to fraction form
   10,225.53/15,309.72 = 5,528.71/x
3. Step 3: Cross multiply
   10,225.53x = 15,309.72 × 5,528.71
4. Step 4: Simplify right side
   10,225.53x = 84,643,002.06
5. Step 5: Solve for x
   x = 84,643,002.06/10,225.53
6. Step 6: Final answer
   x = 8,277.62