Finding the Fourth Proportional to 52,457.54, 72,390.47 and 28,584.42

Step by Step Solution

1. Step 1: Write the proportion equation
   52,457.54 : 72,390.47 = 28,584.42 : x
2. Step 2: Convert to fraction form
   52,457.54/72,390.47 = 28,584.42/x
3. Step 3: Cross multiply
   52,457.54x = 72,390.47 × 28,584.42
4. Step 4: Simplify right side
   52,457.54x = 2,069,239,598.48
5. Step 5: Solve for x
   x = 2,069,239,598.48/52,457.54
6. Step 6: Final answer
   x = 39,445.99