Finding the Fourth Proportional to 85,099.96, 117,420.15 and 49,287.83

Step by Step Solution

1. Step 1: Write the proportion equation
   85,099.96 : 117,420.15 = 49,287.83 : x
2. Step 2: Convert to fraction form
   85,099.96/117,420.15 = 49,287.83/x
3. Step 3: Cross multiply
   85,099.96x = 117,420.15 × 49,287.83
4. Step 4: Simplify right side
   85,099.96x = 5,787,384,685.32
5. Step 5: Solve for x
   x = 5,787,384,685.32/85,099.96
6. Step 6: Final answer
   x = 68,006.90