Finding the Fourth Proportional to 323,613.10, 485,074.05 and 123,856.30

Step by Step Solution

1. Step 1: Write the proportion equation
   323,613.10 : 485,074.05 = 123,856.30 : x
2. Step 2: Convert to fraction form
   323,613.10/485,074.05 = 123,856.30/x
3. Step 3: Cross multiply
   323,613.10x = 485,074.05 × 123,856.30
4. Step 4: Simplify right side
   323,613.10x = 60,079,477,059.02
5. Step 5: Solve for x
   x = 60,079,477,059.02/323,613.10
6. Step 6: Final answer
   x = 185,652.18