Finding the Fourth Proportional to 12,314.34, 18,474.75 and 3,549.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,314.34 : 18,474.75 = 3,549.78 : x
2. Step 2: Convert to fraction form
   12,314.34/18,474.75 = 3,549.78/x
3. Step 3: Cross multiply
   12,314.34x = 18,474.75 × 3,549.78
4. Step 4: Simplify right side
   12,314.34x = 65,581,298.06
5. Step 5: Solve for x
   x = 65,581,298.06/12,314.34
6. Step 6: Final answer
   x = 5,325.60