Finding the Fourth Proportional to 118,904.10, 164,087.01 and 65,191.38

Step by Step Solution

1. Step 1: Write the proportion equation
   118,904.10 : 164,087.01 = 65,191.38 : x
2. Step 2: Convert to fraction form
   118,904.10/164,087.01 = 65,191.38/x
3. Step 3: Cross multiply
   118,904.10x = 164,087.01 × 65,191.38
4. Step 4: Simplify right side
   118,904.10x = 10,697,058,621.97
5. Step 5: Solve for x
   x = 10,697,058,621.97/118,904.10
6. Step 6: Final answer
   x = 89,963.75