Finding the Fourth Proportional to 85,634.48, 118,215.24 and 49,811.42

Step by Step Solution

1. Step 1: Write the proportion equation
   85,634.48 : 118,215.24 = 49,811.42 : x
2. Step 2: Convert to fraction form
   85,634.48/118,215.24 = 49,811.42/x
3. Step 3: Cross multiply
   85,634.48x = 118,215.24 × 49,811.42
4. Step 4: Simplify right side
   85,634.48x = 5,888,468,970.04
5. Step 5: Solve for x
   x = 5,888,468,970.04/85,634.48
6. Step 6: Final answer
   x = 68,762.83