Finding the Fourth Proportional to 11,109.88, 16,683.54 and 7,435.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,109.88 : 16,683.54 = 7,435.72 : x
2. Step 2: Convert to fraction form
   11,109.88/16,683.54 = 7,435.72/x
3. Step 3: Cross multiply
   11,109.88x = 16,683.54 × 7,435.72
4. Step 4: Simplify right side
   11,109.88x = 124,054,132.05
5. Step 5: Solve for x
   x = 124,054,132.05/11,109.88
6. Step 6: Final answer
   x = 11,166.11