Finding the Fourth Proportional to 118,899.95, 164,081.92 and 65,185.34

Step by Step Solution

1. Step 1: Write the proportion equation
   118,899.95 : 164,081.92 = 65,185.34 : x
2. Step 2: Convert to fraction form
   118,899.95/164,081.92 = 65,185.34/x
3. Step 3: Cross multiply
   118,899.95x = 164,081.92 × 65,185.34
4. Step 4: Simplify right side
   118,899.95x = 10,695,735,804.86
5. Step 5: Solve for x
   x = 10,695,735,804.86/118,899.95
6. Step 6: Final answer
   x = 89,955.76