Finding the Fourth Proportional to 16,823.34, 25,238.72 and 5,137.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,823.34 : 25,238.72 = 5,137.47 : x
2. Step 2: Convert to fraction form
   16,823.34/25,238.72 = 5,137.47/x
3. Step 3: Cross multiply
   16,823.34x = 25,238.72 × 5,137.47
4. Step 4: Simplify right side
   16,823.34x = 129,663,179.68
5. Step 5: Solve for x
   x = 129,663,179.68/16,823.34
6. Step 6: Final answer
   x = 7,707.34