Finding the Fourth Proportional to 14,650.39, 21,978.31 and 4,790.19

Step by Step Solution

1. Step 1: Write the proportion equation
   14,650.39 : 21,978.31 = 4,790.19 : x
2. Step 2: Convert to fraction form
   14,650.39/21,978.31 = 4,790.19/x
3. Step 3: Cross multiply
   14,650.39x = 21,978.31 × 4,790.19
4. Step 4: Simplify right side
   14,650.39x = 105,280,280.78
5. Step 5: Solve for x
   x = 105,280,280.78/14,650.39
6. Step 6: Final answer
   x = 7,186.18