Finding the Fourth Proportional to 11,888.46, 17,822.96 and 4,488.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,888.46 : 17,822.96 = 4,488.72 : x
2. Step 2: Convert to fraction form
   11,888.46/17,822.96 = 4,488.72/x
3. Step 3: Cross multiply
   11,888.46x = 17,822.96 × 4,488.72
4. Step 4: Simplify right side
   11,888.46x = 80,002,277.01
5. Step 5: Solve for x
   x = 80,002,277.01/11,888.46
6. Step 6: Final answer
   x = 6,729.41