Finding the Fourth Proportional to 85,105.36, 117,437.88 and 49,283.92

Step by Step Solution

1. Step 1: Write the proportion equation
   85,105.36 : 117,437.88 = 49,283.92 : x
2. Step 2: Convert to fraction form
   85,105.36/117,437.88 = 49,283.92/x
3. Step 3: Cross multiply
   85,105.36x = 117,437.88 × 49,283.92
4. Step 4: Simplify right side
   85,105.36x = 5,787,799,082.89
5. Step 5: Solve for x
   x = 5,787,799,082.89/85,105.36
6. Step 6: Final answer
   x = 68,007.46