Finding the Fourth Proportional to 118,913.76, 164,092.89 and 65,187.67

Step by Step Solution

1. Step 1: Write the proportion equation
   118,913.76 : 164,092.89 = 65,187.67 : x
2. Step 2: Convert to fraction form
   118,913.76/164,092.89 = 65,187.67/x
3. Step 3: Cross multiply
   118,913.76x = 164,092.89 × 65,187.67
4. Step 4: Simplify right side
   118,913.76x = 10,696,833,162.67
5. Step 5: Solve for x
   x = 10,696,833,162.67/118,913.76
6. Step 6: Final answer
   x = 89,954.55