Finding the Fourth Proportional to 52,284.72, 72,103.72 and 40,329.12

Step by Step Solution

1. Step 1: Write the proportion equation
   52,284.72 : 72,103.72 = 40,329.12 : x
2. Step 2: Convert to fraction form
   52,284.72/72,103.72 = 40,329.12/x
3. Step 3: Cross multiply
   52,284.72x = 72,103.72 × 40,329.12
4. Step 4: Simplify right side
   52,284.72x = 2,907,879,576.33
5. Step 5: Solve for x
   x = 2,907,879,576.33/52,284.72
6. Step 6: Final answer
   x = 55,616.24