Finding the Fourth Proportional to 118,900.11, 164,082.96 and 65,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,900.11 : 164,082.96 = 65,185.50 : x
2. Step 2: Convert to fraction form
   118,900.11/164,082.96 = 65,185.50/x
3. Step 3: Cross multiply
   118,900.11x = 164,082.96 × 65,185.50
4. Step 4: Simplify right side
   118,900.11x = 10,695,829,789.08
5. Step 5: Solve for x
   x = 10,695,829,789.08/118,900.11
6. Step 6: Final answer
   x = 89,956.43