Finding the Fourth Proportional to 10,789.58, 16,160.06 and 5,526.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,789.58 : 16,160.06 = 5,526.20 : x
2. Step 2: Convert to fraction form
   10,789.58/16,160.06 = 5,526.20/x
3. Step 3: Cross multiply
   10,789.58x = 16,160.06 × 5,526.20
4. Step 4: Simplify right side
   10,789.58x = 89,303,656.59
5. Step 5: Solve for x
   x = 89,303,656.59/10,789.58
6. Step 6: Final answer
   x = 8,276.85