Finding the Fourth Proportional to 10,222.54, 14,113.56 and 6,691.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,222.54 : 14,113.56 = 6,691.72 : x
2. Step 2: Convert to fraction form
   10,222.54/14,113.56 = 6,691.72/x
3. Step 3: Cross multiply
   10,222.54x = 14,113.56 × 6,691.72
4. Step 4: Simplify right side
   10,222.54x = 94,443,991.72
5. Step 5: Solve for x
   x = 94,443,991.72/10,222.54
6. Step 6: Final answer
   x = 9,238.80