Finding the Fourth Proportional to 13,012.82, 17,968.06 and 12,017.74

Step by Step Solution

1. Step 1: Write the proportion equation
   13,012.82 : 17,968.06 = 12,017.74 : x
2. Step 2: Convert to fraction form
   13,012.82/17,968.06 = 12,017.74/x
3. Step 3: Cross multiply
   13,012.82x = 17,968.06 × 12,017.74
4. Step 4: Simplify right side
   13,012.82x = 215,935,473.38
5. Step 5: Solve for x
   x = 215,935,473.38/13,012.82
6. Step 6: Final answer
   x = 16,594.06