Finding the Fourth Proportional to 20,210.34, 30,315.57 and 7,062.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,210.34 : 30,315.57 = 7,062.72 : x
2. Step 2: Convert to fraction form
   20,210.34/30,315.57 = 7,062.72/x
3. Step 3: Cross multiply
   20,210.34x = 30,315.57 × 7,062.72
4. Step 4: Simplify right side
   20,210.34x = 214,110,382.55
5. Step 5: Solve for x
   x = 214,110,382.55/20,210.34
6. Step 6: Final answer
   x = 10,594.10