Finding the Fourth Proportional to 120,357.45, 166,095.88 and 65,911.91

Step by Step Solution

1. Step 1: Write the proportion equation
   120,357.45 : 166,095.88 = 65,911.91 : x
2. Step 2: Convert to fraction form
   120,357.45/166,095.88 = 65,911.91/x
3. Step 3: Cross multiply
   120,357.45x = 166,095.88 × 65,911.91
4. Step 4: Simplify right side
   120,357.45x = 10,947,695,698.67
5. Step 5: Solve for x
   x = 10,947,695,698.67/120,357.45
6. Step 6: Final answer
   x = 90,959.85