Finding the Fourth Proportional to 52,458.50, 72,392.42 and 28,585.10

Step by Step Solution

1. Step 1: Write the proportion equation
   52,458.50 : 72,392.42 = 28,585.10 : x
2. Step 2: Convert to fraction form
   52,458.50/72,392.42 = 28,585.10/x
3. Step 3: Cross multiply
   52,458.50x = 72,392.42 × 28,585.10
4. Step 4: Simplify right side
   52,458.50x = 2,069,344,060.05
5. Step 5: Solve for x
   x = 2,069,344,060.05/52,458.50
6. Step 6: Final answer
   x = 39,447.26