Finding the Fourth Proportional to 120,281.83, 165,986.28 and 65,833.72

Step by Step Solution

1. Step 1: Write the proportion equation
   120,281.83 : 165,986.28 = 65,833.72 : x
2. Step 2: Convert to fraction form
   120,281.83/165,986.28 = 65,833.72/x
3. Step 3: Cross multiply
   120,281.83x = 165,986.28 × 65,833.72
4. Step 4: Simplify right side
   120,281.83x = 10,927,494,281.36
5. Step 5: Solve for x
   x = 10,927,494,281.36/120,281.83
6. Step 6: Final answer
   x = 90,849.09