Finding the Fourth Proportional to 11,886.63, 17,828.58 and 3,122.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,886.63 : 17,828.58 = 3,122.24 : x
2. Step 2: Convert to fraction form
   11,886.63/17,828.58 = 3,122.24/x
3. Step 3: Cross multiply
   11,886.63x = 17,828.58 × 3,122.24
4. Step 4: Simplify right side
   11,886.63x = 55,665,016.48
5. Step 5: Solve for x
   x = 55,665,016.48/11,886.63
6. Step 6: Final answer
   x = 4,682.99