Finding the Fourth Proportional to 11,171.25, 16,760.72 and 7,438.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,171.25 : 16,760.72 = 7,438.03 : x
2. Step 2: Convert to fraction form
   11,171.25/16,760.72 = 7,438.03/x
3. Step 3: Cross multiply
   11,171.25x = 16,760.72 × 7,438.03
4. Step 4: Simplify right side
   11,171.25x = 124,666,714.87
5. Step 5: Solve for x
   x = 124,666,714.87/11,171.25
6. Step 6: Final answer
   x = 11,159.60