Finding the Fourth Proportional to 21,375.50, 32,062.86 and 8,230.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,375.50 : 32,062.86 = 8,230.72 : x
2. Step 2: Convert to fraction form
   21,375.50/32,062.86 = 8,230.72/x
3. Step 3: Cross multiply
   21,375.50x = 32,062.86 × 8,230.72
4. Step 4: Simplify right side
   21,375.50x = 263,900,423.06
5. Step 5: Solve for x
   x = 263,900,423.06/21,375.50
6. Step 6: Final answer
   x = 12,345.93