Finding the Fourth Proportional to 119,900.10, 165,462.17 and 66,185.15

Step by Step Solution

1. Step 1: Write the proportion equation
   119,900.10 : 165,462.17 = 66,185.15 : x
2. Step 2: Convert to fraction form
   119,900.10/165,462.17 = 66,185.15/x
3. Step 3: Cross multiply
   119,900.10x = 165,462.17 × 66,185.15
4. Step 4: Simplify right side
   119,900.10x = 10,951,138,540.78
5. Step 5: Solve for x
   x = 10,951,138,540.78/119,900.10
6. Step 6: Final answer
   x = 91,335.52