Finding the Fourth Proportional to 17,665.94, 26,441.22 and 12,984.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,665.94 : 26,441.22 = 12,984.72 : x
2. Step 2: Convert to fraction form
   17,665.94/26,441.22 = 12,984.72/x
3. Step 3: Cross multiply
   17,665.94x = 26,441.22 × 12,984.72
4. Step 4: Simplify right side
   17,665.94x = 343,331,838.16
5. Step 5: Solve for x
   x = 343,331,838.16/17,665.94
6. Step 6: Final answer
   x = 19,434.68