Finding the Fourth Proportional to 12,762.09, 19,141.60 and 3,402.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,762.09 : 19,141.60 = 3,402.81 : x
2. Step 2: Convert to fraction form
   12,762.09/19,141.60 = 3,402.81/x
3. Step 3: Cross multiply
   12,762.09x = 19,141.60 × 3,402.81
4. Step 4: Simplify right side
   12,762.09x = 65,135,227.90
5. Step 5: Solve for x
   x = 65,135,227.90/12,762.09
6. Step 6: Final answer
   x = 5,103.81