Finding the Fourth Proportional to 16,667.70, 25,030.35 and 8,891.70

Step by Step Solution

1. Step 1: Write the proportion equation
   16,667.70 : 25,030.35 = 8,891.70 : x
2. Step 2: Convert to fraction form
   16,667.70/25,030.35 = 8,891.70/x
3. Step 3: Cross multiply
   16,667.70x = 25,030.35 × 8,891.70
4. Step 4: Simplify right side
   16,667.70x = 222,562,363.10
5. Step 5: Solve for x
   x = 222,562,363.10/16,667.70
6. Step 6: Final answer
   x = 13,352.91