Finding the Fourth Proportional to 16,813.60, 25,223.46 and 5,719.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,813.60 : 25,223.46 = 5,719.72 : x
2. Step 2: Convert to fraction form
   16,813.60/25,223.46 = 5,719.72/x
3. Step 3: Cross multiply
   16,813.60x = 25,223.46 × 5,719.72
4. Step 4: Simplify right side
   16,813.60x = 144,271,128.63
5. Step 5: Solve for x
   x = 144,271,128.63/16,813.60
6. Step 6: Final answer
   x = 8,580.62