Finding the Fourth Proportional to 21,978.39, 32,944.35 and 7,183.35

Step by Step Solution

1. Step 1: Write the proportion equation
   21,978.39 : 32,944.35 = 7,183.35 : x
2. Step 2: Convert to fraction form
   21,978.39/32,944.35 = 7,183.35/x
3. Step 3: Cross multiply
   21,978.39x = 32,944.35 × 7,183.35
4. Step 4: Simplify right side
   21,978.39x = 236,650,796.57
5. Step 5: Solve for x
   x = 236,650,796.57/21,978.39
6. Step 6: Final answer
   x = 10,767.43