Finding the Fourth Proportional to 85,127.71, 117,458.42 and 49,315.58

Step by Step Solution

1. Step 1: Write the proportion equation
   85,127.71 : 117,458.42 = 49,315.58 : x
2. Step 2: Convert to fraction form
   85,127.71/117,458.42 = 49,315.58/x
3. Step 3: Cross multiply
   85,127.71x = 117,458.42 × 49,315.58
4. Step 4: Simplify right side
   85,127.71x = 5,792,530,155.25
5. Step 5: Solve for x
   x = 5,792,530,155.25/85,127.71
6. Step 6: Final answer
   x = 68,045.18