Finding the Fourth Proportional to 11,748.42, 16,212.72 and 6,443.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,748.42 : 16,212.72 = 6,443.13 : x
2. Step 2: Convert to fraction form
   11,748.42/16,212.72 = 6,443.13/x
3. Step 3: Cross multiply
   11,748.42x = 16,212.72 × 6,443.13
4. Step 4: Simplify right side
   11,748.42x = 104,460,662.61
5. Step 5: Solve for x
   x = 104,460,662.61/11,748.42
6. Step 6: Final answer
   x = 8,891.46