Finding the Fourth Proportional to 85,087.18, 117,411.82 and 49,288.69

Step by Step Solution

1. Step 1: Write the proportion equation
   85,087.18 : 117,411.82 = 49,288.69 : x
2. Step 2: Convert to fraction form
   85,087.18/117,411.82 = 49,288.69/x
3. Step 3: Cross multiply
   85,087.18x = 117,411.82 × 49,288.69
4. Step 4: Simplify right side
   85,087.18x = 5,787,074,798.32
5. Step 5: Solve for x
   x = 5,787,074,798.32/85,087.18
6. Step 6: Final answer
   x = 68,013.48