Finding the Fourth Proportional to 10,768.86, 16,153.38 and 2,978.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,768.86 : 16,153.38 = 2,978.28 : x
2. Step 2: Convert to fraction form
   10,768.86/16,153.38 = 2,978.28/x
3. Step 3: Cross multiply
   10,768.86x = 16,153.38 × 2,978.28
4. Step 4: Simplify right side
   10,768.86x = 48,109,288.59
5. Step 5: Solve for x
   x = 48,109,288.59/10,768.86
6. Step 6: Final answer
   x = 4,467.44