Finding the Fourth Proportional to 52,298.43, 72,172.56 and 28,425.09

Step by Step Solution

1. Step 1: Write the proportion equation
   52,298.43 : 72,172.56 = 28,425.09 : x
2. Step 2: Convert to fraction form
   52,298.43/72,172.56 = 28,425.09/x
3. Step 3: Cross multiply
   52,298.43x = 72,172.56 × 28,425.09
4. Step 4: Simplify right side
   52,298.43x = 2,051,511,513.53
5. Step 5: Solve for x
   x = 2,051,511,513.53/52,298.43
6. Step 6: Final answer
   x = 39,227.02