Finding the Fourth Proportional to 17,070.72, 25,696.67 and 12,174.24

Step by Step Solution

1. Step 1: Write the proportion equation
   17,070.72 : 25,696.67 = 12,174.24 : x
2. Step 2: Convert to fraction form
   17,070.72/25,696.67 = 12,174.24/x
3. Step 3: Cross multiply
   17,070.72x = 25,696.67 × 12,174.24
4. Step 4: Simplify right side
   17,070.72x = 312,837,427.78
5. Step 5: Solve for x
   x = 312,837,427.78/17,070.72
6. Step 6: Final answer
   x = 18,325.97