Finding the Fourth Proportional to 11,016.56, 15,207.85 and 7,043.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,016.56 : 15,207.85 = 7,043.05 : x
2. Step 2: Convert to fraction form
   11,016.56/15,207.85 = 7,043.05/x
3. Step 3: Cross multiply
   11,016.56x = 15,207.85 × 7,043.05
4. Step 4: Simplify right side
   11,016.56x = 107,109,675.76
5. Step 5: Solve for x
   x = 107,109,675.76/11,016.56
6. Step 6: Final answer
   x = 9,722.61