Finding the Fourth Proportional to 86,881.86, 119,878.38 and 65,394.18

Step by Step Solution

1. Step 1: Write the proportion equation
   86,881.86 : 119,878.38 = 65,394.18 : x
2. Step 2: Convert to fraction form
   86,881.86/119,878.38 = 65,394.18/x
3. Step 3: Cross multiply
   86,881.86x = 119,878.38 × 65,394.18
4. Step 4: Simplify right side
   86,881.86x = 7,839,348,359.83
5. Step 5: Solve for x
   x = 7,839,348,359.83/86,881.86
6. Step 6: Final answer
   x = 90,229.98