Finding the Fourth Proportional to 52,578.53, 72,558.61 and 28,705.75

Step by Step Solution

1. Step 1: Write the proportion equation
   52,578.53 : 72,558.61 = 28,705.75 : x
2. Step 2: Convert to fraction form
   52,578.53/72,558.61 = 28,705.75/x
3. Step 3: Cross multiply
   52,578.53x = 72,558.61 × 28,705.75
4. Step 4: Simplify right side
   52,578.53x = 2,082,849,065.85
5. Step 5: Solve for x
   x = 2,082,849,065.85/52,578.53
6. Step 6: Final answer
   x = 39,614.06