Finding the Fourth Proportional to 20,610.30, 30,897.12 and 7,459.76

Step by Step Solution

1. Step 1: Write the proportion equation
   20,610.30 : 30,897.12 = 7,459.76 : x
2. Step 2: Convert to fraction form
   20,610.30/30,897.12 = 7,459.76/x
3. Step 3: Cross multiply
   20,610.30x = 30,897.12 × 7,459.76
4. Step 4: Simplify right side
   20,610.30x = 230,485,099.89
5. Step 5: Solve for x
   x = 230,485,099.89/20,610.30
6. Step 6: Final answer
   x = 11,183.01