Finding the Fourth Proportional to 35,105.27, 52,667.11 and 12,618.21

Step by Step Solution

1. Step 1: Write the proportion equation
   35,105.27 : 52,667.11 = 12,618.21 : x
2. Step 2: Convert to fraction form
   35,105.27/52,667.11 = 12,618.21/x
3. Step 3: Cross multiply
   35,105.27x = 52,667.11 × 12,618.21
4. Step 4: Simplify right side
   35,105.27x = 664,564,867.35
5. Step 5: Solve for x
   x = 664,564,867.35/35,105.27
6. Step 6: Final answer
   x = 18,930.63