Finding the Fourth Proportional to 64,448.71, 88,982.57 and 49,314.31

Step by Step Solution

1. Step 1: Write the proportion equation
   64,448.71 : 88,982.57 = 49,314.31 : x
2. Step 2: Convert to fraction form
   64,448.71/88,982.57 = 49,314.31/x
3. Step 3: Cross multiply
   64,448.71x = 88,982.57 × 49,314.31
4. Step 4: Simplify right side
   64,448.71x = 4,388,113,942.41
5. Step 5: Solve for x
   x = 4,388,113,942.41/64,448.71
6. Step 6: Final answer
   x = 68,086.92