Finding the Fourth Proportional to 46,581.89, 64,287.47 and 28,687.37

Step by Step Solution

1. Step 1: Write the proportion equation
   46,581.89 : 64,287.47 = 28,687.37 : x
2. Step 2: Convert to fraction form
   46,581.89/64,287.47 = 28,687.37/x
3. Step 3: Cross multiply
   46,581.89x = 64,287.47 × 28,687.37
4. Step 4: Simplify right side
   46,581.89x = 1,844,238,188.53
5. Step 5: Solve for x
   x = 1,844,238,188.53/46,581.89
6. Step 6: Final answer
   x = 39,591.32