Finding the Fourth Proportional to 118,940.61, 164,140.30 and 65,222.42

Step by Step Solution

1. Step 1: Write the proportion equation
   118,940.61 : 164,140.30 = 65,222.42 : x
2. Step 2: Convert to fraction form
   118,940.61/164,140.30 = 65,222.42/x
3. Step 3: Cross multiply
   118,940.61x = 164,140.30 × 65,222.42
4. Step 4: Simplify right side
   118,940.61x = 10,705,627,585.53
5. Step 5: Solve for x
   x = 10,705,627,585.53/118,940.61
6. Step 6: Final answer
   x = 90,008.18