Finding the Fourth Proportional to 52,215.98, 72,057.80 and 28,342.44

Step by Step Solution

1. Step 1: Write the proportion equation
   52,215.98 : 72,057.80 = 28,342.44 : x
2. Step 2: Convert to fraction form
   52,215.98/72,057.80 = 28,342.44/x
3. Step 3: Cross multiply
   52,215.98x = 72,057.80 × 28,342.44
4. Step 4: Simplify right side
   52,215.98x = 2,042,293,943.89
5. Step 5: Solve for x
   x = 2,042,293,943.89/52,215.98
6. Step 6: Final answer
   x = 39,112.44