Finding the Fourth Proportional to 118,912.74, 164,097.72 and 65,198.22

Step by Step Solution

1. Step 1: Write the proportion equation
   118,912.74 : 164,097.72 = 65,198.22 : x
2. Step 2: Convert to fraction form
   118,912.74/164,097.72 = 65,198.22/x
3. Step 3: Cross multiply
   118,912.74x = 164,097.72 × 65,198.22
4. Step 4: Simplify right side
   118,912.74x = 10,698,879,250.06
5. Step 5: Solve for x
   x = 10,698,879,250.06/118,912.74
6. Step 6: Final answer
   x = 89,972.52