Finding the Fourth Proportional to 20,561.02, 30,775.30 and 13,546.82

Step by Step Solution

1. Step 1: Write the proportion equation
   20,561.02 : 30,775.30 = 13,546.82 : x
2. Step 2: Convert to fraction form
   20,561.02/30,775.30 = 13,546.82/x
3. Step 3: Cross multiply
   20,561.02x = 30,775.30 × 13,546.82
4. Step 4: Simplify right side
   20,561.02x = 416,907,449.55
5. Step 5: Solve for x
   x = 416,907,449.55/20,561.02
6. Step 6: Final answer
   x = 20,276.59