Finding the Fourth Proportional to 11,648.61, 17,462.42 and 4,247.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,648.61 : 17,462.42 = 4,247.88 : x
2. Step 2: Convert to fraction form
   11,648.61/17,462.42 = 4,247.88/x
3. Step 3: Cross multiply
   11,648.61x = 17,462.42 × 4,247.88
4. Step 4: Simplify right side
   11,648.61x = 74,178,275.29
5. Step 5: Solve for x
   x = 74,178,275.29/11,648.61
6. Step 6: Final answer
   x = 6,367.99