Finding the Fourth Proportional to 16,043.07, 22,139.06 and 8,970.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,043.07 : 22,139.06 = 8,970.15 : x
2. Step 2: Convert to fraction form
   16,043.07/22,139.06 = 8,970.15/x
3. Step 3: Cross multiply
   16,043.07x = 22,139.06 × 8,970.15
4. Step 4: Simplify right side
   16,043.07x = 198,590,689.06
5. Step 5: Solve for x
   x = 198,590,689.06/16,043.07
6. Step 6: Final answer
   x = 12,378.60