Finding the Fourth Proportional to 10,897.38, 16,348.49 and 3,971.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,897.38 : 16,348.49 = 3,971.88 : x
2. Step 2: Convert to fraction form
   10,897.38/16,348.49 = 3,971.88/x
3. Step 3: Cross multiply
   10,897.38x = 16,348.49 × 3,971.88
4. Step 4: Simplify right side
   10,897.38x = 64,934,168.65
5. Step 5: Solve for x
   x = 64,934,168.65/10,897.38
6. Step 6: Final answer
   x = 5,958.70