Finding the Fourth Proportional to 10,883.96, 16,328.78 and 5,620.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,883.96 : 16,328.78 = 5,620.56 : x
2. Step 2: Convert to fraction form
   10,883.96/16,328.78 = 5,620.56/x
3. Step 3: Cross multiply
   10,883.96x = 16,328.78 × 5,620.56
4. Step 4: Simplify right side
   10,883.96x = 91,776,887.72
5. Step 5: Solve for x
   x = 91,776,887.72/10,883.96
6. Step 6: Final answer
   x = 8,432.31