Finding the Fourth Proportional to 12,477.83, 18,716.54 and 3,712.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,477.83 : 18,716.54 = 3,712.82 : x
2. Step 2: Convert to fraction form
   12,477.83/18,716.54 = 3,712.82/x
3. Step 3: Cross multiply
   12,477.83x = 18,716.54 × 3,712.82
4. Step 4: Simplify right side
   12,477.83x = 69,491,031.90
5. Step 5: Solve for x
   x = 69,491,031.90/12,477.83
6. Step 6: Final answer
   x = 5,569.16