Finding the Fourth Proportional to 11,057.58, 15,256.71 and 7,022.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,057.58 : 15,256.71 = 7,022.88 : x
2. Step 2: Convert to fraction form
   11,057.58/15,256.71 = 7,022.88/x
3. Step 3: Cross multiply
   11,057.58x = 15,256.71 × 7,022.88
4. Step 4: Simplify right side
   11,057.58x = 107,146,043.52
5. Step 5: Solve for x
   x = 107,146,043.52/11,057.58
6. Step 6: Final answer
   x = 9,689.83