Finding the Fourth Proportional to 118,930.45, 164,123.94 and 65,216.38

Step by Step Solution

1. Step 1: Write the proportion equation
   118,930.45 : 164,123.94 = 65,216.38 : x
2. Step 2: Convert to fraction form
   118,930.45/164,123.94 = 65,216.38/x
3. Step 3: Cross multiply
   118,930.45x = 164,123.94 × 65,216.38
4. Step 4: Simplify right side
   118,930.45x = 10,703,569,238.14
5. Step 5: Solve for x
   x = 10,703,569,238.14/118,930.45
6. Step 6: Final answer
   x = 89,998.56