Finding the Fourth Proportional to 14,492.36, 21,731.20 and 7,085.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,492.36 : 21,731.20 = 7,085.72 : x
2. Step 2: Convert to fraction form
   14,492.36/21,731.20 = 7,085.72/x
3. Step 3: Cross multiply
   14,492.36x = 21,731.20 × 7,085.72
4. Step 4: Simplify right side
   14,492.36x = 153,981,198.46
5. Step 5: Solve for x
   x = 153,981,198.46/14,492.36
6. Step 6: Final answer
   x = 10,624.99