Finding the Fourth Proportional to 120,357.50, 166,087.77 and 69,379.34

Step by Step Solution

1. Step 1: Write the proportion equation
   120,357.50 : 166,087.77 = 69,379.34 : x
2. Step 2: Convert to fraction form
   120,357.50/166,087.77 = 69,379.34/x
3. Step 3: Cross multiply
   120,357.50x = 166,087.77 × 69,379.34
4. Step 4: Simplify right side
   120,357.50x = 11,523,058,774.06
5. Step 5: Solve for x
   x = 11,523,058,774.06/120,357.50
6. Step 6: Final answer
   x = 95,740.27