Finding the Fourth Proportional to 13,010.95, 17,955.06 and 7,042.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,010.95 : 17,955.06 = 7,042.72 : x
2. Step 2: Convert to fraction form
   13,010.95/17,955.06 = 7,042.72/x
3. Step 3: Cross multiply
   13,010.95x = 17,955.06 × 7,042.72
4. Step 4: Simplify right side
   13,010.95x = 126,452,460.16
5. Step 5: Solve for x
   x = 126,452,460.16/13,010.95
6. Step 6: Final answer
   x = 9,718.93