Finding the Fourth Proportional to 11,748.32, 16,212.61 and 6,443.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,748.32 : 16,212.61 = 6,443.18 : x
2. Step 2: Convert to fraction form
   11,748.32/16,212.61 = 6,443.18/x
3. Step 3: Cross multiply
   11,748.32x = 16,212.61 × 6,443.18
4. Step 4: Simplify right side
   11,748.32x = 104,460,764.50
5. Step 5: Solve for x
   x = 104,460,764.50/11,748.32
6. Step 6: Final answer
   x = 8,891.55