Finding the Fourth Proportional to 11,478.37, 17,211.72 and 4,460.39

Step by Step Solution

1. Step 1: Write the proportion equation
   11,478.37 : 17,211.72 = 4,460.39 : x
2. Step 2: Convert to fraction form
   11,478.37/17,211.72 = 4,460.39/x
3. Step 3: Cross multiply
   11,478.37x = 17,211.72 × 4,460.39
4. Step 4: Simplify right side
   11,478.37x = 76,770,983.77
5. Step 5: Solve for x
   x = 76,770,983.77/11,478.37
6. Step 6: Final answer
   x = 6,688.32