Finding the Fourth Proportional to 118,908.66, 164,094.42 and 65,194.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,908.66 : 164,094.42 = 65,194.50 : x
2. Step 2: Convert to fraction form
   118,908.66/164,094.42 = 65,194.50/x
3. Step 3: Cross multiply
   118,908.66x = 164,094.42 × 65,194.50
4. Step 4: Simplify right side
   118,908.66x = 10,698,053,664.69
5. Step 5: Solve for x
   x = 10,698,053,664.69/118,908.66
6. Step 6: Final answer
   x = 89,968.67