Finding the Fourth Proportional to 57,914.76, 86,736.06 and 28,239.56

Step by Step Solution

1. Step 1: Write the proportion equation
   57,914.76 : 86,736.06 = 28,239.56 : x
2. Step 2: Convert to fraction form
   57,914.76/86,736.06 = 28,239.56/x
3. Step 3: Cross multiply
   57,914.76x = 86,736.06 × 28,239.56
4. Step 4: Simplify right side
   57,914.76x = 2,449,388,170.53
5. Step 5: Solve for x
   x = 2,449,388,170.53/57,914.76
6. Step 6: Final answer
   x = 42,292.99