Finding the Fourth Proportional to 34,770.15, 52,124.04 and 12,578.31

Step by Step Solution

1. Step 1: Write the proportion equation
   34,770.15 : 52,124.04 = 12,578.31 : x
2. Step 2: Convert to fraction form
   34,770.15/52,124.04 = 12,578.31/x
3. Step 3: Cross multiply
   34,770.15x = 52,124.04 × 12,578.31
4. Step 4: Simplify right side
   34,770.15x = 655,632,333.57
5. Step 5: Solve for x
   x = 655,632,333.57/34,770.15
6. Step 6: Final answer
   x = 18,856.18