Finding the Fourth Proportional to 383,832.72, 575,814.68 and 131,099.34

Step by Step Solution

1. Step 1: Write the proportion equation
   383,832.72 : 575,814.68 = 131,099.34 : x
2. Step 2: Convert to fraction form
   383,832.72/575,814.68 = 131,099.34/x
3. Step 3: Cross multiply
   383,832.72x = 575,814.68 × 131,099.34
4. Step 4: Simplify right side
   383,832.72x = 75,488,924,510.31
5. Step 5: Solve for x
   x = 75,488,924,510.31/383,832.72
6. Step 6: Final answer
   x = 196,671.42