Finding the Fourth Proportional to 13,297.34, 19,939.88 and 3,934.01

Step by Step Solution

1. Step 1: Write the proportion equation
   13,297.34 : 19,939.88 = 3,934.01 : x
2. Step 2: Convert to fraction form
   13,297.34/19,939.88 = 3,934.01/x
3. Step 3: Cross multiply
   13,297.34x = 19,939.88 × 3,934.01
4. Step 4: Simplify right side
   13,297.34x = 78,443,747.00
5. Step 5: Solve for x
   x = 78,443,747.00/13,297.34
6. Step 6: Final answer
   x = 5,899.20