Finding the Fourth Proportional to 119,665.72, 165,139.86 and 65,950.84

Step by Step Solution

1. Step 1: Write the proportion equation
   119,665.72 : 165,139.86 = 65,950.84 : x
2. Step 2: Convert to fraction form
   119,665.72/165,139.86 = 65,950.84/x
3. Step 3: Cross multiply
   119,665.72x = 165,139.86 × 65,950.84
4. Step 4: Simplify right side
   119,665.72x = 10,891,112,484.48
5. Step 5: Solve for x
   x = 10,891,112,484.48/119,665.72
6. Step 6: Final answer
   x = 91,012.80