Finding the Fourth Proportional to 13,008.31, 19,514.90 and 4,245.73

Step by Step Solution

1. Step 1: Write the proportion equation
   13,008.31 : 19,514.90 = 4,245.73 : x
2. Step 2: Convert to fraction form
   13,008.31/19,514.90 = 4,245.73/x
3. Step 3: Cross multiply
   13,008.31x = 19,514.90 × 4,245.73
4. Step 4: Simplify right side
   13,008.31x = 82,854,996.38
5. Step 5: Solve for x
   x = 82,854,996.38/13,008.31
6. Step 6: Final answer
   x = 6,369.39