Finding the Fourth Proportional to 86,123.01, 118,849.79 and 49,829.40

Step by Step Solution

1. Step 1: Write the proportion equation
   86,123.01 : 118,849.79 = 49,829.40 : x
2. Step 2: Convert to fraction form
   86,123.01/118,849.79 = 49,829.40/x
3. Step 3: Cross multiply
   86,123.01x = 118,849.79 × 49,829.40
4. Step 4: Simplify right side
   86,123.01x = 5,922,213,725.83
5. Step 5: Solve for x
   x = 5,922,213,725.83/86,123.01
6. Step 6: Final answer
   x = 68,764.59