Finding the Fourth Proportional to 13,013, 19,521.96 and 5,222.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,013 : 19,521.96 = 5,222.42 : x
2. Step 2: Convert to fraction form
   13,013/19,521.96 = 5,222.42/x
3. Step 3: Cross multiply
   13,013x = 19,521.96 × 5,222.42
4. Step 4: Simplify right side
   13,013x = 101,951,874.34
5. Step 5: Solve for x
   x = 101,951,874.34/13,013
6. Step 6: Final answer
   x = 7,834.62