Finding the Fourth Proportional to 16,666.83, 24,981.21 and 5,570.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,666.83 : 24,981.21 = 5,570.91 : x
2. Step 2: Convert to fraction form
   16,666.83/24,981.21 = 5,570.91/x
3. Step 3: Cross multiply
   16,666.83x = 24,981.21 × 5,570.91
4. Step 4: Simplify right side
   16,666.83x = 139,168,072.60
5. Step 5: Solve for x
   x = 139,168,072.60/16,666.83
6. Step 6: Final answer
   x = 8,350.00