Finding the Fourth Proportional to 10,886.43, 16,239.27 and 10,522.01

Step by Step Solution

1. Step 1: Write the proportion equation
   10,886.43 : 16,239.27 = 10,522.01 : x
2. Step 2: Convert to fraction form
   10,886.43/16,239.27 = 10,522.01/x
3. Step 3: Cross multiply
   10,886.43x = 16,239.27 × 10,522.01
4. Step 4: Simplify right side
   10,886.43x = 170,869,627.53
5. Step 5: Solve for x
   x = 170,869,627.53/10,886.43
6. Step 6: Final answer
   x = 15,695.66