Finding the Fourth Proportional to 120,405.83, 166,166.03 and 69,426.86

Step by Step Solution

1. Step 1: Write the proportion equation
   120,405.83 : 166,166.03 = 69,426.86 : x
2. Step 2: Convert to fraction form
   120,405.83/166,166.03 = 69,426.86/x
3. Step 3: Cross multiply
   120,405.83x = 166,166.03 × 69,426.86
4. Step 4: Simplify right side
   120,405.83x = 11,536,385,044.30
5. Step 5: Solve for x
   x = 11,536,385,044.30/120,405.83
6. Step 6: Final answer
   x = 95,812.52