Finding the Fourth Proportional to 81,765.35, 112,837.20 and 49,499.54

Step by Step Solution

1. Step 1: Write the proportion equation
   81,765.35 : 112,837.20 = 49,499.54 : x
2. Step 2: Convert to fraction form
   81,765.35/112,837.20 = 49,499.54/x
3. Step 3: Cross multiply
   81,765.35x = 112,837.20 × 49,499.54
4. Step 4: Simplify right side
   81,765.35x = 5,585,389,494.89
5. Step 5: Solve for x
   x = 5,585,389,494.89/81,765.35
6. Step 6: Final answer
   x = 68,309.98