Finding the Fourth Proportional to 120,411.37, 166,104.69 and 74,456.32

Step by Step Solution

1. Step 1: Write the proportion equation
   120,411.37 : 166,104.69 = 74,456.32 : x
2. Step 2: Convert to fraction form
   120,411.37/166,104.69 = 74,456.32/x
3. Step 3: Cross multiply
   120,411.37x = 166,104.69 × 74,456.32
4. Step 4: Simplify right side
   120,411.37x = 12,367,543,952.14
5. Step 5: Solve for x
   x = 12,367,543,952.14/120,411.37
6. Step 6: Final answer
   x = 102,710.77