Finding the Fourth Proportional to 11,171.84, 16,750.72 and 4,238.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,171.84 : 16,750.72 = 4,238.72 : x
2. Step 2: Convert to fraction form
   11,171.84/16,750.72 = 4,238.72/x
3. Step 3: Cross multiply
   11,171.84x = 16,750.72 × 4,238.72
4. Step 4: Simplify right side
   11,171.84x = 71,001,611.88
5. Step 5: Solve for x
   x = 71,001,611.88/11,171.84
6. Step 6: Final answer
   x = 6,355.41