Finding the Fourth Proportional to 10,713.42, 16,042.18 and 8,622.00

Step by Step Solution

1. Step 1: Write the proportion equation
   10,713.42 : 16,042.18 = 8,622.00 : x
2. Step 2: Convert to fraction form
   10,713.42/16,042.18 = 8,622.00/x
3. Step 3: Cross multiply
   10,713.42x = 16,042.18 × 8,622.00
4. Step 4: Simplify right side
   10,713.42x = 138,315,574.19
5. Step 5: Solve for x
   x = 138,315,574.19/10,713.42
6. Step 6: Final answer
   x = 12,910.50