Finding the Fourth Proportional to 85,218.50, 117,594.56 and 49,410.69

Step by Step Solution

1. Step 1: Write the proportion equation
   85,218.50 : 117,594.56 = 49,410.69 : x
2. Step 2: Convert to fraction form
   85,218.50/117,594.56 = 49,410.69/x
3. Step 3: Cross multiply
   85,218.50x = 117,594.56 × 49,410.69
4. Step 4: Simplify right side
   85,218.50x = 5,810,428,102.79
5. Step 5: Solve for x
   x = 5,810,428,102.79/85,218.50
6. Step 6: Final answer
   x = 68,182.71