Finding the Fourth Proportional to 10,990.74, 16,483.04 and 4,663.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,990.74 : 16,483.04 = 4,663.46 : x
2. Step 2: Convert to fraction form
   10,990.74/16,483.04 = 4,663.46/x
3. Step 3: Cross multiply
   10,990.74x = 16,483.04 × 4,663.46
4. Step 4: Simplify right side
   10,990.74x = 76,867,997.72
5. Step 5: Solve for x
   x = 76,867,997.72/10,990.74
6. Step 6: Final answer
   x = 6,993.89