Finding the Fourth Proportional to 16,683.35, 25,007.59 and 5,580.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,683.35 : 25,007.59 = 5,580.91 : x
2. Step 2: Convert to fraction form
   16,683.35/25,007.59 = 5,580.91/x
3. Step 3: Cross multiply
   16,683.35x = 25,007.59 × 5,580.91
4. Step 4: Simplify right side
   16,683.35x = 139,565,006.67
5. Step 5: Solve for x
   x = 139,565,006.67/16,683.35
6. Step 6: Final answer
   x = 8,365.53