Finding the Fourth Proportional to 16,648.56, 22,978.86 and 10,984.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,648.56 : 22,978.86 = 10,984.32 : x
2. Step 2: Convert to fraction form
   16,648.56/22,978.86 = 10,984.32/x
3. Step 3: Cross multiply
   16,648.56x = 22,978.86 × 10,984.32
4. Step 4: Simplify right side
   16,648.56x = 252,407,151.48
5. Step 5: Solve for x
   x = 252,407,151.48/16,648.56
6. Step 6: Final answer
   x = 15,160.90