Finding the Fourth Proportional to 10,978.19, 16,467.15 and 4,404.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.19 : 16,467.15 = 4,404.26 : x
2. Step 2: Convert to fraction form
   10,978.19/16,467.15 = 4,404.26/x
3. Step 3: Cross multiply
   10,978.19x = 16,467.15 × 4,404.26
4. Step 4: Simplify right side
   10,978.19x = 72,525,527.72
5. Step 5: Solve for x
   x = 72,525,527.72/10,978.19
6. Step 6: Final answer
   x = 6,606.33