Finding the Fourth Proportional to 35,144.68, 52,708.72 and 12,946

Step by Step Solution

1. Step 1: Write the proportion equation
   35,144.68 : 52,708.72 = 12,946 : x
2. Step 2: Convert to fraction form
   35,144.68/52,708.72 = 12,946/x
3. Step 3: Cross multiply
   35,144.68x = 52,708.72 × 12,946
4. Step 4: Simplify right side
   35,144.68x = 682,367,089.12
5. Step 5: Solve for x
   x = 682,367,089.12/35,144.68
6. Step 6: Final answer
   x = 19,415.94