Finding the Fourth Proportional to 52,216.05, 72,058.23 and 28,342.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,216.05 : 72,058.23 = 28,342.72 : x
2. Step 2: Convert to fraction form
   52,216.05/72,058.23 = 28,342.72/x
3. Step 3: Cross multiply
   52,216.05x = 72,058.23 × 28,342.72
4. Step 4: Simplify right side
   52,216.05x = 2,042,326,507.70
5. Step 5: Solve for x
   x = 2,042,326,507.70/52,216.05
6. Step 6: Final answer
   x = 39,113.00