Finding the Fourth Proportional to 443,567.91, 612,123.12 and 252,581.31

Step by Step Solution

1. Step 1: Write the proportion equation
   443,567.91 : 612,123.12 = 252,581.31 : x
2. Step 2: Convert to fraction form
   443,567.91/612,123.12 = 252,581.31/x
3. Step 3: Cross multiply
   443,567.91x = 612,123.12 × 252,581.31
4. Step 4: Simplify right side
   443,567.91x = 154,610,859,530.89
5. Step 5: Solve for x
   x = 154,610,859,530.89/443,567.91
6. Step 6: Final answer
   x = 348,561.87