Finding the Fourth Proportional to 118,948.06, 164,150.58 and 65,229.85

Step by Step Solution

1. Step 1: Write the proportion equation
   118,948.06 : 164,150.58 = 65,229.85 : x
2. Step 2: Convert to fraction form
   118,948.06/164,150.58 = 65,229.85/x
3. Step 3: Cross multiply
   118,948.06x = 164,150.58 × 65,229.85
4. Step 4: Simplify right side
   118,948.06x = 10,707,517,710.81
5. Step 5: Solve for x
   x = 10,707,517,710.81/118,948.06
6. Step 6: Final answer
   x = 90,018.43