Finding the Fourth Proportional to 118,903.24, 164,086.43 and 65,187.11

Step by Step Solution

1. Step 1: Write the proportion equation
   118,903.24 : 164,086.43 = 65,187.11 : x
2. Step 2: Convert to fraction form
   118,903.24/164,086.43 = 65,187.11/x
3. Step 3: Cross multiply
   118,903.24x = 164,086.43 × 65,187.11
4. Step 4: Simplify right side
   118,903.24x = 10,696,319,689.89
5. Step 5: Solve for x
   x = 10,696,319,689.89/118,903.24
6. Step 6: Final answer
   x = 89,958.18