Finding the Fourth Proportional to 16,908.86, 25,366.48 and 5,219.35

Step by Step Solution

1. Step 1: Write the proportion equation
   16,908.86 : 25,366.48 = 5,219.35 : x
2. Step 2: Convert to fraction form
   16,908.86/25,366.48 = 5,219.35/x
3. Step 3: Cross multiply
   16,908.86x = 25,366.48 × 5,219.35
4. Step 4: Simplify right side
   16,908.86x = 132,396,410.56
5. Step 5: Solve for x
   x = 132,396,410.56/16,908.86
6. Step 6: Final answer
   x = 7,830.00