Finding the Fourth Proportional to 13,010.78, 17,954.93 and 7,042.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,010.78 : 17,954.93 = 7,042.52 : x
2. Step 2: Convert to fraction form
   13,010.78/17,954.93 = 7,042.52/x
3. Step 3: Cross multiply
   13,010.78x = 17,954.93 × 7,042.52
4. Step 4: Simplify right side
   13,010.78x = 126,448,016.12
5. Step 5: Solve for x
   x = 126,448,016.12/13,010.78
6. Step 6: Final answer
   x = 9,718.71