Finding the Fourth Proportional to 52,315.62, 72,196.01 and 28,442.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,315.62 : 72,196.01 = 28,442.31 : x
2. Step 2: Convert to fraction form
   52,315.62/72,196.01 = 28,442.31/x
3. Step 3: Cross multiply
   52,315.62x = 72,196.01 × 28,442.31
4. Step 4: Simplify right side
   52,315.62x = 2,053,421,297.18
5. Step 5: Solve for x
   x = 2,053,421,297.18/52,315.62
6. Step 6: Final answer
   x = 39,250.63