Finding the Fourth Proportional to 13,066.58, 18,031.82 and 7,692.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,066.58 : 18,031.82 = 7,692.14 : x
2. Step 2: Convert to fraction form
   13,066.58/18,031.82 = 7,692.14/x
3. Step 3: Cross multiply
   13,066.58x = 18,031.82 × 7,692.14
4. Step 4: Simplify right side
   13,066.58x = 138,703,283.89
5. Step 5: Solve for x
   x = 138,703,283.89/13,066.58
6. Step 6: Final answer
   x = 10,615.12