Finding the Fourth Proportional to 16,827.59, 25,245.10 and 5,141.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,827.59 : 25,245.10 = 5,141.72 : x
2. Step 2: Convert to fraction form
   16,827.59/25,245.10 = 5,141.72/x
3. Step 3: Cross multiply
   16,827.59x = 25,245.10 × 5,141.72
4. Step 4: Simplify right side
   16,827.59x = 129,803,235.57
5. Step 5: Solve for x
   x = 129,803,235.57/16,827.59
6. Step 6: Final answer
   x = 7,713.72