Finding the Fourth Proportional to 120,003.66, 165,603.98 and 66,292.42

Step by Step Solution

1. Step 1: Write the proportion equation
   120,003.66 : 165,603.98 = 66,292.42 : x
2. Step 2: Convert to fraction form
   120,003.66/165,603.98 = 66,292.42/x
3. Step 3: Cross multiply
   120,003.66x = 165,603.98 × 66,292.42
4. Step 4: Simplify right side
   120,003.66x = 10,978,288,595.83
5. Step 5: Solve for x
   x = 10,978,288,595.83/120,003.66
6. Step 6: Final answer
   x = 91,482.95