Finding the Fourth Proportional to 11,479.42, 17,216.94 and 3,157.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,479.42 : 17,216.94 = 3,157.34 : x
2. Step 2: Convert to fraction form
   11,479.42/17,216.94 = 3,157.34/x
3. Step 3: Cross multiply
   11,479.42x = 17,216.94 × 3,157.34
4. Step 4: Simplify right side
   11,479.42x = 54,359,733.34
5. Step 5: Solve for x
   x = 54,359,733.34/11,479.42
6. Step 6: Final answer
   x = 4,735.41