Finding the Fourth Proportional to 123,945.60, 185,630.06 and 120,536.31

Step by Step Solution

1. Step 1: Write the proportion equation
   123,945.60 : 185,630.06 = 120,536.31 : x
2. Step 2: Convert to fraction form
   123,945.60/185,630.06 = 120,536.31/x
3. Step 3: Cross multiply
   123,945.60x = 185,630.06 × 120,536.31
4. Step 4: Simplify right side
   123,945.60x = 22,375,162,457.48
5. Step 5: Solve for x
   x = 22,375,162,457.48/123,945.60
6. Step 6: Final answer
   x = 180,524.06