Finding the Fourth Proportional to 12,741.71, 19,120.25 and 9,074.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,741.71 : 19,120.25 = 9,074.43 : x
2. Step 2: Convert to fraction form
   12,741.71/19,120.25 = 9,074.43/x
3. Step 3: Cross multiply
   12,741.71x = 19,120.25 × 9,074.43
4. Step 4: Simplify right side
   12,741.71x = 173,505,392.89
5. Step 5: Solve for x
   x = 173,505,392.89/12,741.71
6. Step 6: Final answer
   x = 13,617.13