Finding the Fourth Proportional to 12,854.51, 19,282.15 and 3,494.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,854.51 : 19,282.15 = 3,494.49 : x
2. Step 2: Convert to fraction form
   12,854.51/19,282.15 = 3,494.49/x
3. Step 3: Cross multiply
   12,854.51x = 19,282.15 × 3,494.49
4. Step 4: Simplify right side
   12,854.51x = 67,381,320.88
5. Step 5: Solve for x
   x = 67,381,320.88/12,854.51
6. Step 6: Final answer
   x = 5,241.84