Finding the Fourth Proportional to 12,748.86, 19,124.40 and 3,983.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,748.86 : 19,124.40 = 3,983.82 : x
2. Step 2: Convert to fraction form
   12,748.86/19,124.40 = 3,983.82/x
3. Step 3: Cross multiply
   12,748.86x = 19,124.40 × 3,983.82
4. Step 4: Simplify right side
   12,748.86x = 76,188,167.21
5. Step 5: Solve for x
   x = 76,188,167.21/12,748.86
6. Step 6: Final answer
   x = 5,976.08