Finding the Fourth Proportional to 22,182.56, 30,607.35 and 12,749.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,182.56 : 30,607.35 = 12,749.30 : x
2. Step 2: Convert to fraction form
   22,182.56/30,607.35 = 12,749.30/x
3. Step 3: Cross multiply
   22,182.56x = 30,607.35 × 12,749.30
4. Step 4: Simplify right side
   22,182.56x = 390,222,134.32
5. Step 5: Solve for x
   x = 390,222,134.32/22,182.56
6. Step 6: Final answer
   x = 17,591.40