Finding the Fourth Proportional to 52,216.17, 72,059.61 and 28,342.77

Step by Step Solution

1. Step 1: Write the proportion equation
   52,216.17 : 72,059.61 = 28,342.77 : x
2. Step 2: Convert to fraction form
   52,216.17/72,059.61 = 28,342.77/x
3. Step 3: Cross multiply
   52,216.17x = 72,059.61 × 28,342.77
4. Step 4: Simplify right side
   52,216.17x = 2,042,368,952.52
5. Step 5: Solve for x
   x = 2,042,368,952.52/52,216.17
6. Step 6: Final answer
   x = 39,113.73