Finding the Fourth Proportional to 118,797.50, 163,940.86 and 65,083.56

Step by Step Solution

1. Step 1: Write the proportion equation
   118,797.50 : 163,940.86 = 65,083.56 : x
2. Step 2: Convert to fraction form
   118,797.50/163,940.86 = 65,083.56/x
3. Step 3: Cross multiply
   118,797.50x = 163,940.86 × 65,083.56
4. Step 4: Simplify right side
   118,797.50x = 10,669,854,798.26
5. Step 5: Solve for x
   x = 10,669,854,798.26/118,797.50
6. Step 6: Final answer
   x = 89,815.48