Finding the Fourth Proportional to 12,762.58, 19,142.35 and 3,403.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,762.58 : 19,142.35 = 3,403.30 : x
2. Step 2: Convert to fraction form
   12,762.58/19,142.35 = 3,403.30/x
3. Step 3: Cross multiply
   12,762.58x = 19,142.35 × 3,403.30
4. Step 4: Simplify right side
   12,762.58x = 65,147,159.76
5. Step 5: Solve for x
   x = 65,147,159.76/12,762.58
6. Step 6: Final answer
   x = 5,104.54