Finding the Fourth Proportional to 20,108.72, 30,132.31 and 10,750.07

Step by Step Solution

1. Step 1: Write the proportion equation
   20,108.72 : 30,132.31 = 10,750.07 : x
2. Step 2: Convert to fraction form
   20,108.72/30,132.31 = 10,750.07/x
3. Step 3: Cross multiply
   20,108.72x = 30,132.31 × 10,750.07
4. Step 4: Simplify right side
   20,108.72x = 323,924,441.76
5. Step 5: Solve for x
   x = 323,924,441.76/20,108.72
6. Step 6: Final answer
   x = 16,108.66