Finding the Fourth Proportional to 172,124.10, 258,380.55 and 132,855.30

Step by Step Solution

1. Step 1: Write the proportion equation
   172,124.10 : 258,380.55 = 132,855.30 : x
2. Step 2: Convert to fraction form
   172,124.10/258,380.55 = 132,855.30/x
3. Step 3: Cross multiply
   172,124.10x = 258,380.55 × 132,855.30
4. Step 4: Simplify right side
   172,124.10x = 34,327,225,484.42
5. Step 5: Solve for x
   x = 34,327,225,484.42/172,124.10
6. Step 6: Final answer
   x = 199,433.00