Finding the Fourth Proportional to 11,004.53, 16,508.41 and 7,126.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,004.53 : 16,508.41 = 7,126.25 : x
2. Step 2: Convert to fraction form
   11,004.53/16,508.41 = 7,126.25/x
3. Step 3: Cross multiply
   11,004.53x = 16,508.41 × 7,126.25
4. Step 4: Simplify right side
   11,004.53x = 117,642,974.22
5. Step 5: Solve for x
   x = 117,642,974.22/11,004.53
6. Step 6: Final answer
   x = 10,690.42