Finding the Fourth Proportional to 42,834.22, 64,243.59 and 11,662.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,834.22 : 64,243.59 = 11,662.18 : x
2. Step 2: Convert to fraction form
   42,834.22/64,243.59 = 11,662.18/x
3. Step 3: Cross multiply
   42,834.22x = 64,243.59 × 11,662.18
4. Step 4: Simplify right side
   42,834.22x = 749,220,310.43
5. Step 5: Solve for x
   x = 749,220,310.43/42,834.22
6. Step 6: Final answer
   x = 17,491.16