Finding the Fourth Proportional to 22,427.16, 30,948 and 13,469.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,427.16 : 30,948 = 13,469.34 : x
2. Step 2: Convert to fraction form
   22,427.16/30,948 = 13,469.34/x
3. Step 3: Cross multiply
   22,427.16x = 30,948 × 13,469.34
4. Step 4: Simplify right side
   22,427.16x = 416,849,134.32
5. Step 5: Solve for x
   x = 416,849,134.32/22,427.16
6. Step 6: Final answer
   x = 18,586.80