Finding the Fourth Proportional to 120,748.43, 166,633.42 and 75,452.72

Step by Step Solution

1. Step 1: Write the proportion equation
   120,748.43 : 166,633.42 = 75,452.72 : x
2. Step 2: Convert to fraction form
   120,748.43/166,633.42 = 75,452.72/x
3. Step 3: Cross multiply
   120,748.43x = 166,633.42 × 75,452.72
4. Step 4: Simplify right side
   120,748.43x = 12,572,944,593.27
5. Step 5: Solve for x
   x = 12,572,944,593.27/120,748.43
6. Step 6: Final answer
   x = 104,125.12