Finding the Fourth Proportional to 11,101.74, 16,621.62 and 7,584.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,101.74 : 16,621.62 = 7,584.32 : x
2. Step 2: Convert to fraction form
   11,101.74/16,621.62 = 7,584.32/x
3. Step 3: Cross multiply
   11,101.74x = 16,621.62 × 7,584.32
4. Step 4: Simplify right side
   11,101.74x = 126,063,601.89
5. Step 5: Solve for x
   x = 126,063,601.89/11,101.74
6. Step 6: Final answer
   x = 11,355.30