Finding the Fourth Proportional to 118,903.65, 164,082.69 and 65,187.49

Step by Step Solution

1. Step 1: Write the proportion equation
   118,903.65 : 164,082.69 = 65,187.49 : x
2. Step 2: Convert to fraction form
   118,903.65/164,082.69 = 65,187.49/x
3. Step 3: Cross multiply
   118,903.65x = 164,082.69 × 65,187.49
4. Step 4: Simplify right side
   118,903.65x = 10,696,138,713.55
5. Step 5: Solve for x
   x = 10,696,138,713.55/118,903.65
6. Step 6: Final answer
   x = 89,956.35