Finding the Fourth Proportional to 10,620.27, 15,942.69 and 5,699.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620.27 : 15,942.69 = 5,699.52 : x
2. Step 2: Convert to fraction form
   10,620.27/15,942.69 = 5,699.52/x
3. Step 3: Cross multiply
   10,620.27x = 15,942.69 × 5,699.52
4. Step 4: Simplify right side
   10,620.27x = 90,865,680.51
5. Step 5: Solve for x
   x = 90,865,680.51/10,620.27
6. Step 6: Final answer
   x = 8,555.87