Finding the Fourth Proportional to 85,253.61, 117,626.25 and 49,436.49

Step by Step Solution

1. Step 1: Write the proportion equation
   85,253.61 : 117,626.25 = 49,436.49 : x
2. Step 2: Convert to fraction form
   85,253.61/117,626.25 = 49,436.49/x
3. Step 3: Cross multiply
   85,253.61x = 117,626.25 × 49,436.49
4. Step 4: Simplify right side
   85,253.61x = 5,815,028,931.86
5. Step 5: Solve for x
   x = 5,815,028,931.86/85,253.61
6. Step 6: Final answer
   x = 68,208.59