Finding the Fourth Proportional to 52,315.48, 72,196.18 and 28,442.24

Step by Step Solution

1. Step 1: Write the proportion equation
   52,315.48 : 72,196.18 = 28,442.24 : x
2. Step 2: Convert to fraction form
   52,315.48/72,196.18 = 28,442.24/x
3. Step 3: Cross multiply
   52,315.48x = 72,196.18 × 28,442.24
4. Step 4: Simplify right side
   52,315.48x = 2,053,421,078.64
5. Step 5: Solve for x
   x = 2,053,421,078.64/52,315.48
6. Step 6: Final answer
   x = 39,250.74