Finding the Fourth Proportional to 20,493.68, 30,765.72 and 19,460.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,493.68 : 30,765.72 = 19,460.72 : x
2. Step 2: Convert to fraction form
   20,493.68/30,765.72 = 19,460.72/x
3. Step 3: Cross multiply
   20,493.68x = 30,765.72 × 19,460.72
4. Step 4: Simplify right side
   20,493.68x = 598,723,062.52
5. Step 5: Solve for x
   x = 598,723,062.52/20,493.68
6. Step 6: Final answer
   x = 29,215.01