Finding the Fourth Proportional to 12,378.82, 18,569.34 and 3,494.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,378.82 : 18,569.34 = 3,494.24 : x
2. Step 2: Convert to fraction form
   12,378.82/18,569.34 = 3,494.24/x
3. Step 3: Cross multiply
   12,378.82x = 18,569.34 × 3,494.24
4. Step 4: Simplify right side
   12,378.82x = 64,885,777.02
5. Step 5: Solve for x
   x = 64,885,777.02/12,378.82
6. Step 6: Final answer
   x = 5,241.68