Finding the Fourth Proportional to 12,057.48, 16,637.58 and 7,518.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,057.48 : 16,637.58 = 7,518.24 : x
2. Step 2: Convert to fraction form
   12,057.48/16,637.58 = 7,518.24/x
3. Step 3: Cross multiply
   12,057.48x = 16,637.58 × 7,518.24
4. Step 4: Simplify right side
   12,057.48x = 125,085,319.46
5. Step 5: Solve for x
   x = 125,085,319.46/12,057.48
6. Step 6: Final answer
   x = 10,374.08