Finding the Fourth Proportional to 361,500.50, 542,575.98 and 193,164.72

Step by Step Solution

1. Step 1: Write the proportion equation
   361,500.50 : 542,575.98 = 193,164.72 : x
2. Step 2: Convert to fraction form
   361,500.50/542,575.98 = 193,164.72/x
3. Step 3: Cross multiply
   361,500.50x = 542,575.98 × 193,164.72
4. Step 4: Simplify right side
   361,500.50x = 104,806,537,255.43
5. Step 5: Solve for x
   x = 104,806,537,255.43/361,500.50
6. Step 6: Final answer
   x = 289,920.86