Finding the Fourth Proportional to 86,085.84, 118,805.60 and 50,287.34

Step by Step Solution

1. Step 1: Write the proportion equation
   86,085.84 : 118,805.60 = 50,287.34 : x
2. Step 2: Convert to fraction form
   86,085.84/118,805.60 = 50,287.34/x
3. Step 3: Cross multiply
   86,085.84x = 118,805.60 × 50,287.34
4. Step 4: Simplify right side
   86,085.84x = 5,974,417,601.10
5. Step 5: Solve for x
   x = 5,974,417,601.10/86,085.84
6. Step 6: Final answer
   x = 69,400.70