Finding the Fourth Proportional to 11,426.27, 17,126.82 and 7,475.90

Step by Step Solution

1. Step 1: Write the proportion equation
   11,426.27 : 17,126.82 = 7,475.90 : x
2. Step 2: Convert to fraction form
   11,426.27/17,126.82 = 7,475.90/x
3. Step 3: Cross multiply
   11,426.27x = 17,126.82 × 7,475.90
4. Step 4: Simplify right side
   11,426.27x = 128,038,308.00
5. Step 5: Solve for x
   x = 128,038,308.00/11,426.27
6. Step 6: Final answer
   x = 11,205.61