Finding the Fourth Proportional to 9,906.03, 13,667.94 and 5,714.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,906.03 : 13,667.94 = 5,714.28 : x
2. Step 2: Convert to fraction form
   9,906.03/13,667.94 = 5,714.28/x
3. Step 3: Cross multiply
   9,906.03x = 13,667.94 × 5,714.28
4. Step 4: Simplify right side
   9,906.03x = 78,102,436.18
5. Step 5: Solve for x
   x = 78,102,436.18/9,906.03
6. Step 6: Final answer
   x = 7,884.33