Finding the Fourth Proportional to 17,124.21, 25,680.85 and 5,434.70

Step by Step Solution

1. Step 1: Write the proportion equation
   17,124.21 : 25,680.85 = 5,434.70 : x
2. Step 2: Convert to fraction form
   17,124.21/25,680.85 = 5,434.70/x
3. Step 3: Cross multiply
   17,124.21x = 25,680.85 × 5,434.70
4. Step 4: Simplify right side
   17,124.21x = 139,567,573.50
5. Step 5: Solve for x
   x = 139,567,573.50/17,124.21
6. Step 6: Final answer
   x = 8,150.31