Finding the Fourth Proportional to 119,139.92, 164,414.23 and 65,426.06

Step by Step Solution

1. Step 1: Write the proportion equation
   119,139.92 : 164,414.23 = 65,426.06 : x
2. Step 2: Convert to fraction form
   119,139.92/164,414.23 = 65,426.06/x
3. Step 3: Cross multiply
   119,139.92x = 164,414.23 × 65,426.06
4. Step 4: Simplify right side
   119,139.92x = 10,756,975,276.83
5. Step 5: Solve for x
   x = 10,756,975,276.83/119,139.92
6. Step 6: Final answer
   x = 90,288.59