Finding the Fourth Proportional to 9,906.88, 13,673.52 and 5,714.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,906.88 : 13,673.52 = 5,714.56 : x
2. Step 2: Convert to fraction form
   9,906.88/13,673.52 = 5,714.56/x
3. Step 3: Cross multiply
   9,906.88x = 13,673.52 × 5,714.56
4. Step 4: Simplify right side
   9,906.88x = 78,138,150.45
5. Step 5: Solve for x
   x = 78,138,150.45/9,906.88
6. Step 6: Final answer
   x = 7,887.26