Finding the Fourth Proportional to 11,668.72, 17,483.28 and 7,042

Step by Step Solution

1. Step 1: Write the proportion equation
   11,668.72 : 17,483.28 = 7,042 : x
2. Step 2: Convert to fraction form
   11,668.72/17,483.28 = 7,042/x
3. Step 3: Cross multiply
   11,668.72x = 17,483.28 × 7,042
4. Step 4: Simplify right side
   11,668.72x = 123,117,257.76
5. Step 5: Solve for x
   x = 123,117,257.76/11,668.72
6. Step 6: Final answer
   x = 10,551.05