Finding the Fourth Proportional to 12,646.89, 18,973.98 and 3,883.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,646.89 : 18,973.98 = 3,883.10 : x
2. Step 2: Convert to fraction form
   12,646.89/18,973.98 = 3,883.10/x
3. Step 3: Cross multiply
   12,646.89x = 18,973.98 × 3,883.10
4. Step 4: Simplify right side
   12,646.89x = 73,677,766.87
5. Step 5: Solve for x
   x = 73,677,766.87/12,646.89
6. Step 6: Final answer
   x = 5,825.76