Finding the Fourth Proportional to 16,143.76, 22,279.38 and 9,070.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,143.76 : 22,279.38 = 9,070.18 : x
2. Step 2: Convert to fraction form
   16,143.76/22,279.38 = 9,070.18/x
3. Step 3: Cross multiply
   16,143.76x = 22,279.38 × 9,070.18
4. Step 4: Simplify right side
   16,143.76x = 202,077,986.89
5. Step 5: Solve for x
   x = 202,077,986.89/16,143.76
6. Step 6: Final answer
   x = 12,517.41