Finding the Fourth Proportional to 296,144.70, 443,925.45 and 146,408.10

Step by Step Solution

1. Step 1: Write the proportion equation
   296,144.70 : 443,925.45 = 146,408.10 : x
2. Step 2: Convert to fraction form
   296,144.70/443,925.45 = 146,408.10/x
3. Step 3: Cross multiply
   296,144.70x = 443,925.45 × 146,408.10
4. Step 4: Simplify right side
   296,144.70x = 64,994,281,676.15
5. Step 5: Solve for x
   x = 64,994,281,676.15/296,144.70
6. Step 6: Final answer
   x = 219,467.99