Finding the Fourth Proportional to 118,904.59, 164,083.98 and 65,188.43

Step by Step Solution

1. Step 1: Write the proportion equation
   118,904.59 : 164,083.98 = 65,188.43 : x
2. Step 2: Convert to fraction form
   118,904.59/164,083.98 = 65,188.43/x
3. Step 3: Cross multiply
   118,904.59x = 164,083.98 × 65,188.43
4. Step 4: Simplify right side
   118,904.59x = 10,696,377,044.35
5. Step 5: Solve for x
   x = 10,696,377,044.35/118,904.59
6. Step 6: Final answer
   x = 89,957.65