Finding the Fourth Proportional to 443,142.92, 664,656.06 and 123,316.04

Step by Step Solution

1. Step 1: Write the proportion equation
   443,142.92 : 664,656.06 = 123,316.04 : x
2. Step 2: Convert to fraction form
   443,142.92/664,656.06 = 123,316.04/x
3. Step 3: Cross multiply
   443,142.92x = 664,656.06 × 123,316.04
4. Step 4: Simplify right side
   443,142.92x = 81,962,753,281.20
5. Step 5: Solve for x
   x = 81,962,753,281.20/443,142.92
6. Step 6: Final answer
   x = 184,957.83