Finding the Fourth Proportional to 52,499.45, 72,449.57 and 28,626.53

Step by Step Solution

1. Step 1: Write the proportion equation
   52,499.45 : 72,449.57 = 28,626.53 : x
2. Step 2: Convert to fraction form
   52,499.45/72,449.57 = 28,626.53/x
3. Step 3: Cross multiply
   52,499.45x = 72,449.57 × 28,626.53
4. Step 4: Simplify right side
   52,499.45x = 2,073,979,498.41
5. Step 5: Solve for x
   x = 2,073,979,498.41/52,499.45
6. Step 6: Final answer
   x = 39,504.78