Finding the Fourth Proportional to 35,105.19, 52,667.01 and 12,618.15

Step by Step Solution

1. Step 1: Write the proportion equation
   35,105.19 : 52,667.01 = 12,618.15 : x
2. Step 2: Convert to fraction form
   35,105.19/52,667.01 = 12,618.15/x
3. Step 3: Cross multiply
   35,105.19x = 52,667.01 × 12,618.15
4. Step 4: Simplify right side
   35,105.19x = 664,560,232.23
5. Step 5: Solve for x
   x = 664,560,232.23/35,105.19
6. Step 6: Final answer
   x = 18,930.54