Finding the Fourth Proportional to 10,550.76, 15,820.80 and 3,528.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,550.76 : 15,820.80 = 3,528.27 : x
2. Step 2: Convert to fraction form
   10,550.76/15,820.80 = 3,528.27/x
3. Step 3: Cross multiply
   10,550.76x = 15,820.80 × 3,528.27
4. Step 4: Simplify right side
   10,550.76x = 55,820,054.02
5. Step 5: Solve for x
   x = 55,820,054.02/10,550.76
6. Step 6: Final answer
   x = 5,290.62