Finding the Fourth Proportional to 16,691.67, 25,038.72 and 5,005.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,691.67 : 25,038.72 = 5,005.80 : x
2. Step 2: Convert to fraction form
   16,691.67/25,038.72 = 5,005.80/x
3. Step 3: Cross multiply
   16,691.67x = 25,038.72 × 5,005.80
4. Step 4: Simplify right side
   16,691.67x = 125,338,824.58
5. Step 5: Solve for x
   x = 125,338,824.58/16,691.67
6. Step 6: Final answer
   x = 7,509.06