Finding the Fourth Proportional to 13,243.42, 19,868.19 and 3,884.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,243.42 : 19,868.19 = 3,884.15 : x
2. Step 2: Convert to fraction form
   13,243.42/19,868.19 = 3,884.15/x
3. Step 3: Cross multiply
   13,243.42x = 19,868.19 × 3,884.15
4. Step 4: Simplify right side
   13,243.42x = 77,171,065.29
5. Step 5: Solve for x
   x = 77,171,065.29/13,243.42
6. Step 6: Final answer
   x = 5,827.12