Finding the Fourth Proportional to 13,315.29, 19,976.01 and 3,955.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,315.29 : 19,976.01 = 3,955.10 : x
2. Step 2: Convert to fraction form
   13,315.29/19,976.01 = 3,955.10/x
3. Step 3: Cross multiply
   13,315.29x = 19,976.01 × 3,955.10
4. Step 4: Simplify right side
   13,315.29x = 79,007,097.38
5. Step 5: Solve for x
   x = 79,007,097.38/13,315.29
6. Step 6: Final answer
   x = 5,933.56