Finding the Fourth Proportional to 119,646.31, 165,111.20 and 65,198.38

Step by Step Solution

1. Step 1: Write the proportion equation
   119,646.31 : 165,111.20 = 65,198.38 : x
2. Step 2: Convert to fraction form
   119,646.31/165,111.20 = 65,198.38/x
3. Step 3: Cross multiply
   119,646.31x = 165,111.20 × 65,198.38
4. Step 4: Simplify right side
   119,646.31x = 10,764,982,759.86
5. Step 5: Solve for x
   x = 10,764,982,759.86/119,646.31
6. Step 6: Final answer
   x = 89,973.38