Finding the Fourth Proportional to 12,760.17, 19,137.51 and 3,993.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,760.17 : 19,137.51 = 3,993.93 : x
2. Step 2: Convert to fraction form
   12,760.17/19,137.51 = 3,993.93/x
3. Step 3: Cross multiply
   12,760.17x = 19,137.51 × 3,993.93
4. Step 4: Simplify right side
   12,760.17x = 76,433,875.31
5. Step 5: Solve for x
   x = 76,433,875.31/12,760.17
6. Step 6: Final answer
   x = 5,990.04