Finding the Fourth Proportional to 10,638.24, 14,679.72 and 5,922.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,638.24 : 14,679.72 = 5,922.96 : x
2. Step 2: Convert to fraction form
   10,638.24/14,679.72 = 5,922.96/x
3. Step 3: Cross multiply
   10,638.24x = 14,679.72 × 5,922.96
4. Step 4: Simplify right side
   10,638.24x = 86,947,394.37
5. Step 5: Solve for x
   x = 86,947,394.37/10,638.24
6. Step 6: Final answer
   x = 8,173.10