Finding the Fourth Proportional to 14,492.10, 21,738.18 and 7,914.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,492.10 : 21,738.18 = 7,914.72 : x
2. Step 2: Convert to fraction form
   14,492.10/21,738.18 = 7,914.72/x
3. Step 3: Cross multiply
   14,492.10x = 21,738.18 × 7,914.72
4. Step 4: Simplify right side
   14,492.10x = 172,051,608.01
5. Step 5: Solve for x
   x = 172,051,608.01/14,492.10
6. Step 6: Final answer
   x = 11,872.10