Finding the Fourth Proportional to 20,150.01, 30,240.42 and 10,164.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,150.01 : 30,240.42 = 10,164.72 : x
2. Step 2: Convert to fraction form
   20,150.01/30,240.42 = 10,164.72/x
3. Step 3: Cross multiply
   20,150.01x = 30,240.42 × 10,164.72
4. Step 4: Simplify right side
   20,150.01x = 307,385,401.98
5. Step 5: Solve for x
   x = 307,385,401.98/20,150.01
6. Step 6: Final answer
   x = 15,254.85