Finding the Fourth Proportional to 10,650.81, 15,978.27 and 3,630.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,650.81 : 15,978.27 = 3,630.54 : x
2. Step 2: Convert to fraction form
   10,650.81/15,978.27 = 3,630.54/x
3. Step 3: Cross multiply
   10,650.81x = 15,978.27 × 3,630.54
4. Step 4: Simplify right side
   10,650.81x = 58,009,748.37
5. Step 5: Solve for x
   x = 58,009,748.37/10,650.81
6. Step 6: Final answer
   x = 5,446.51