Finding the Fourth Proportional to 12,108.83, 16,704.10 and 10,513.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,108.83 : 16,704.10 = 10,513.31 : x
2. Step 2: Convert to fraction form
   12,108.83/16,704.10 = 10,513.31/x
3. Step 3: Cross multiply
   12,108.83x = 16,704.10 × 10,513.31
4. Step 4: Simplify right side
   12,108.83x = 175,615,397.05
5. Step 5: Solve for x
   x = 175,615,397.05/12,108.83
6. Step 6: Final answer
   x = 14,503.08