Finding the Fourth Proportional to 20,256.30, 30,389.34 and 7,606.16

Step by Step Solution

1. Step 1: Write the proportion equation
   20,256.30 : 30,389.34 = 7,606.16 : x
2. Step 2: Convert to fraction form
   20,256.30/30,389.34 = 7,606.16/x
3. Step 3: Cross multiply
   20,256.30x = 30,389.34 × 7,606.16
4. Step 4: Simplify right side
   20,256.30x = 231,146,182.33
5. Step 5: Solve for x
   x = 231,146,182.33/20,256.30
6. Step 6: Final answer
   x = 11,411.08