Finding the Fourth Proportional to 118,933.64, 164,123.98 and 65,217.40

Step by Step Solution

1. Step 1: Write the proportion equation
   118,933.64 : 164,123.98 = 65,217.40 : x
2. Step 2: Convert to fraction form
   118,933.64/164,123.98 = 65,217.40/x
3. Step 3: Cross multiply
   118,933.64x = 164,123.98 × 65,217.40
4. Step 4: Simplify right side
   118,933.64x = 10,703,739,253.25
5. Step 5: Solve for x
   x = 10,703,739,253.25/118,933.64
6. Step 6: Final answer
   x = 89,997.58