Finding the Fourth Proportional to 52,491.52, 72,438.72 and 28,618.37

Step by Step Solution

1. Step 1: Write the proportion equation
   52,491.52 : 72,438.72 = 28,618.37 : x
2. Step 2: Convert to fraction form
   52,491.52/72,438.72 = 28,618.37/x
3. Step 3: Cross multiply
   52,491.52x = 72,438.72 × 28,618.37
4. Step 4: Simplify right side
   52,491.52x = 2,073,078,108.06
5. Step 5: Solve for x
   x = 2,073,078,108.06/52,491.52
6. Step 6: Final answer
   x = 39,493.58