Finding the Fourth Proportional to 12,354.96, 17,076.52 and 10,928.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,354.96 : 17,076.52 = 10,928.56 : x
2. Step 2: Convert to fraction form
   12,354.96/17,076.52 = 10,928.56/x
3. Step 3: Cross multiply
   12,354.96x = 17,076.52 × 10,928.56
4. Step 4: Simplify right side
   12,354.96x = 186,621,773.41
5. Step 5: Solve for x
   x = 186,621,773.41/12,354.96
6. Step 6: Final answer
   x = 15,105.01