Finding the Fourth Proportional to 11,659.98, 17,479.42 and 4,259.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,659.98 : 17,479.42 = 4,259.22 : x
2. Step 2: Convert to fraction form
   11,659.98/17,479.42 = 4,259.22/x
3. Step 3: Cross multiply
   11,659.98x = 17,479.42 × 4,259.22
4. Step 4: Simplify right side
   11,659.98x = 74,448,695.25
5. Step 5: Solve for x
   x = 74,448,695.25/11,659.98
6. Step 6: Final answer
   x = 6,384.98