Finding the Fourth Proportional to 13,026.97, 19,540.18 and 3,166.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,026.97 : 19,540.18 = 3,166.30 : x
2. Step 2: Convert to fraction form
   13,026.97/19,540.18 = 3,166.30/x
3. Step 3: Cross multiply
   13,026.97x = 19,540.18 × 3,166.30
4. Step 4: Simplify right side
   13,026.97x = 61,869,958.40
5. Step 5: Solve for x
   x = 61,869,958.40/13,026.97
6. Step 6: Final answer
   x = 4,749.38