Finding the Fourth Proportional to 16,901.72, 25,355.96 and 5,214.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,901.72 : 25,355.96 = 5,214.50 : x
2. Step 2: Convert to fraction form
   16,901.72/25,355.96 = 5,214.50/x
3. Step 3: Cross multiply
   16,901.72x = 25,355.96 × 5,214.50
4. Step 4: Simplify right side
   16,901.72x = 132,218,653.42
5. Step 5: Solve for x
   x = 132,218,653.42/16,901.72
6. Step 6: Final answer
   x = 7,822.79