Finding the Fourth Proportional to 52,216.20, 72,058.72 and 28,342.87

Step by Step Solution

1. Step 1: Write the proportion equation
   52,216.20 : 72,058.72 = 28,342.87 : x
2. Step 2: Convert to fraction form
   52,216.20/72,058.72 = 28,342.87/x
3. Step 3: Cross multiply
   52,216.20x = 72,058.72 × 28,342.87
4. Step 4: Simplify right side
   52,216.20x = 2,042,350,933.33
5. Step 5: Solve for x
   x = 2,042,350,933.33/52,216.20
6. Step 6: Final answer
   x = 39,113.36