Finding the Fourth Proportional to 11,643.39, 17,457.78 and 8,481.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,643.39 : 17,457.78 = 8,481.96 : x
2. Step 2: Convert to fraction form
   11,643.39/17,457.78 = 8,481.96/x
3. Step 3: Cross multiply
   11,643.39x = 17,457.78 × 8,481.96
4. Step 4: Simplify right side
   11,643.39x = 148,076,191.65
5. Step 5: Solve for x
   x = 148,076,191.65/11,643.39
6. Step 6: Final answer
   x = 12,717.62