Finding the Fourth Proportional to 11,748.34, 16,212.56 and 6,443.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,748.34 : 16,212.56 = 6,443.16 : x
2. Step 2: Convert to fraction form
   11,748.34/16,212.56 = 6,443.16/x
3. Step 3: Cross multiply
   11,748.34x = 16,212.56 × 6,443.16
4. Step 4: Simplify right side
   11,748.34x = 104,460,118.09
5. Step 5: Solve for x
   x = 104,460,118.09/11,748.34
6. Step 6: Final answer
   x = 8,891.48