Finding the Fourth Proportional to 16,778.24, 25,162.88 and 5,091.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,778.24 : 25,162.88 = 5,091.56 : x
2. Step 2: Convert to fraction form
   16,778.24/25,162.88 = 5,091.56/x
3. Step 3: Cross multiply
   16,778.24x = 25,162.88 × 5,091.56
4. Step 4: Simplify right side
   16,778.24x = 128,118,313.29
5. Step 5: Solve for x
   x = 128,118,313.29/16,778.24
6. Step 6: Final answer
   x = 7,635.98