Finding the Fourth Proportional to 12,734.29, 17,591.04 and 12,111.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,734.29 : 17,591.04 = 12,111.51 : x
2. Step 2: Convert to fraction form
   12,734.29/17,591.04 = 12,111.51/x
3. Step 3: Cross multiply
   12,734.29x = 17,591.04 × 12,111.51
4. Step 4: Simplify right side
   12,734.29x = 213,054,056.87
5. Step 5: Solve for x
   x = 213,054,056.87/12,734.29
6. Step 6: Final answer
   x = 16,730.74