Finding the Fourth Proportional to 443,464.72, 665,421.72 and 194,148.88

Step by Step Solution

1. Step 1: Write the proportion equation
   443,464.72 : 665,421.72 = 194,148.88 : x
2. Step 2: Convert to fraction form
   443,464.72/665,421.72 = 194,148.88/x
3. Step 3: Cross multiply
   443,464.72x = 665,421.72 × 194,148.88
4. Step 4: Simplify right side
   443,464.72x = 129,190,881,665.67
5. Step 5: Solve for x
   x = 129,190,881,665.67/443,464.72
6. Step 6: Final answer
   x = 291,321.67