Finding the Fourth Proportional to 14,715.79, 22,043.20 and 7,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,715.79 : 22,043.20 = 7,196.72 : x
2. Step 2: Convert to fraction form
   14,715.79/22,043.20 = 7,196.72/x
3. Step 3: Cross multiply
   14,715.79x = 22,043.20 × 7,196.72
4. Step 4: Simplify right side
   14,715.79x = 158,638,738.30
5. Step 5: Solve for x
   x = 158,638,738.30/14,715.79
6. Step 6: Final answer
   x = 10,780.17