Finding the Fourth Proportional to 52,105.62, 78,162.21 and 18,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,105.62 : 78,162.21 = 18,367.50 : x
2. Step 2: Convert to fraction form
   52,105.62/78,162.21 = 18,367.50/x
3. Step 3: Cross multiply
   52,105.62x = 78,162.21 × 18,367.50
4. Step 4: Simplify right side
   52,105.62x = 1,435,644,392.18
5. Step 5: Solve for x
   x = 1,435,644,392.18/52,105.62
6. Step 6: Final answer
   x = 27,552.58