Finding the Fourth Proportional to 52,457.81, 72,391.82 and 28,584.48

Step by Step Solution

1. Step 1: Write the proportion equation
   52,457.81 : 72,391.82 = 28,584.48 : x
2. Step 2: Convert to fraction form
   52,457.81/72,391.82 = 28,584.48/x
3. Step 3: Cross multiply
   52,457.81x = 72,391.82 × 28,584.48
4. Step 4: Simplify right side
   52,457.81x = 2,069,282,388.03
5. Step 5: Solve for x
   x = 2,069,282,388.03/52,457.81
6. Step 6: Final answer
   x = 39,446.60