Finding the Fourth Proportional to 120,009.54, 165,613.75 and 65,562.47

Step by Step Solution

1. Step 1: Write the proportion equation
   120,009.54 : 165,613.75 = 65,562.47 : x
2. Step 2: Convert to fraction form
   120,009.54/165,613.75 = 65,562.47/x
3. Step 3: Cross multiply
   120,009.54x = 165,613.75 × 65,562.47
4. Step 4: Simplify right side
   120,009.54x = 10,858,045,687.89
5. Step 5: Solve for x
   x = 10,858,045,687.89/120,009.54
6. Step 6: Final answer
   x = 90,476.52