Finding the Fourth Proportional to 118,796.58, 163,943.40 and 65,086.26

Step by Step Solution

1. Step 1: Write the proportion equation
   118,796.58 : 163,943.40 = 65,086.26 : x
2. Step 2: Convert to fraction form
   118,796.58/163,943.40 = 65,086.26/x
3. Step 3: Cross multiply
   118,796.58x = 163,943.40 × 65,086.26
4. Step 4: Simplify right side
   118,796.58x = 10,670,462,757.68
5. Step 5: Solve for x
   x = 10,670,462,757.68/118,796.58
6. Step 6: Final answer
   x = 89,821.30