Finding the Fourth Proportional to 10,769.22, 16,139.98 and 10,492.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,769.22 : 16,139.98 = 10,492.42 : x
2. Step 2: Convert to fraction form
   10,769.22/16,139.98 = 10,492.42/x
3. Step 3: Cross multiply
   10,769.22x = 16,139.98 × 10,492.42
4. Step 4: Simplify right side
   10,769.22x = 169,347,448.95
5. Step 5: Solve for x
   x = 169,347,448.95/10,769.22
6. Step 6: Final answer
   x = 15,725.14