Finding the Fourth Proportional to 13,301.48, 19,955.15 and 3,942.23

Step by Step Solution

1. Step 1: Write the proportion equation
   13,301.48 : 19,955.15 = 3,942.23 : x
2. Step 2: Convert to fraction form
   13,301.48/19,955.15 = 3,942.23/x
3. Step 3: Cross multiply
   13,301.48x = 19,955.15 × 3,942.23
4. Step 4: Simplify right side
   13,301.48x = 78,667,671.50
5. Step 5: Solve for x
   x = 78,667,671.50/13,301.48
6. Step 6: Final answer
   x = 5,914.21