Finding the Fourth Proportional to 118,951.88, 164,138.47 and 65,222.75

Step by Step Solution

1. Step 1: Write the proportion equation
   118,951.88 : 164,138.47 = 65,222.75 : x
2. Step 2: Convert to fraction form
   118,951.88/164,138.47 = 65,222.75/x
3. Step 3: Cross multiply
   118,951.88x = 164,138.47 × 65,222.75
4. Step 4: Simplify right side
   118,951.88x = 10,705,562,641.48
5. Step 5: Solve for x
   x = 10,705,562,641.48/118,951.88
6. Step 6: Final answer
   x = 89,999.11