Finding the Fourth Proportional to 11,056.34, 16,620.96 and 10,244.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,056.34 : 16,620.96 = 10,244.72 : x
2. Step 2: Convert to fraction form
   11,056.34/16,620.96 = 10,244.72/x
3. Step 3: Cross multiply
   11,056.34x = 16,620.96 × 10,244.72
4. Step 4: Simplify right side
   11,056.34x = 170,277,081.33
5. Step 5: Solve for x
   x = 170,277,081.33/11,056.34
6. Step 6: Final answer
   x = 15,400.85