Finding the Fourth Proportional to 12,513.98, 18,752.05 and 5,490.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,513.98 : 18,752.05 = 5,490.06 : x
2. Step 2: Convert to fraction form
   12,513.98/18,752.05 = 5,490.06/x
3. Step 3: Cross multiply
   12,513.98x = 18,752.05 × 5,490.06
4. Step 4: Simplify right side
   12,513.98x = 102,949,936.22
5. Step 5: Solve for x
   x = 102,949,936.22/12,513.98
6. Step 6: Final answer
   x = 8,226.79