Finding the Fourth Proportional to 10,978.02, 16,469.10 and 4,404.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.02 : 16,469.10 = 4,404.71 : x
2. Step 2: Convert to fraction form
   10,978.02/16,469.10 = 4,404.71/x
3. Step 3: Cross multiply
   10,978.02x = 16,469.10 × 4,404.71
4. Step 4: Simplify right side
   10,978.02x = 72,541,650.63
5. Step 5: Solve for x
   x = 72,541,650.63/10,978.02
6. Step 6: Final answer
   x = 6,607.90