Finding the Fourth Proportional to 12,381.38, 18,575.17 and 5,799.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,381.38 : 18,575.17 = 5,799.89 : x
2. Step 2: Convert to fraction form
   12,381.38/18,575.17 = 5,799.89/x
3. Step 3: Cross multiply
   12,381.38x = 18,575.17 × 5,799.89
4. Step 4: Simplify right side
   12,381.38x = 107,733,942.73
5. Step 5: Solve for x
   x = 107,733,942.73/12,381.38
6. Step 6: Final answer
   x = 8,701.29