Finding the Fourth Proportional to 16,461.79, 24,683.83 and 5,215.06

Step by Step Solution

1. Step 1: Write the proportion equation
   16,461.79 : 24,683.83 = 5,215.06 : x
2. Step 2: Convert to fraction form
   16,461.79/24,683.83 = 5,215.06/x
3. Step 3: Cross multiply
   16,461.79x = 24,683.83 × 5,215.06
4. Step 4: Simplify right side
   16,461.79x = 128,727,654.48
5. Step 5: Solve for x
   x = 128,727,654.48/16,461.79
6. Step 6: Final answer
   x = 7,819.79