Finding the Fourth Proportional to 120,279.90, 166,003.83 and 69,282.72

Step by Step Solution

1. Step 1: Write the proportion equation
   120,279.90 : 166,003.83 = 69,282.72 : x
2. Step 2: Convert to fraction form
   120,279.90/166,003.83 = 69,282.72/x
3. Step 3: Cross multiply
   120,279.90x = 166,003.83 × 69,282.72
4. Step 4: Simplify right side
   120,279.90x = 11,501,196,872.82
5. Step 5: Solve for x
   x = 11,501,196,872.82/120,279.90
6. Step 6: Final answer
   x = 95,620.27