Finding the Fourth Proportional to 264,142.10, 396,213.11 and 123,900.72

Step by Step Solution

1. Step 1: Write the proportion equation
   264,142.10 : 396,213.11 = 123,900.72 : x
2. Step 2: Convert to fraction form
   264,142.10/396,213.11 = 123,900.72/x
3. Step 3: Cross multiply
   264,142.10x = 396,213.11 × 123,900.72
4. Step 4: Simplify right side
   264,142.10x = 49,091,088,982.94
5. Step 5: Solve for x
   x = 49,091,088,982.94/264,142.10
6. Step 6: Final answer
   x = 185,851.06