Finding the Fourth Proportional to 13,029.42, 17,980.46 and 7,061.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,029.42 : 17,980.46 = 7,061.06 : x
2. Step 2: Convert to fraction form
   13,029.42/17,980.46 = 7,061.06/x
3. Step 3: Cross multiply
   13,029.42x = 17,980.46 × 7,061.06
4. Step 4: Simplify right side
   13,029.42x = 126,960,981.68
5. Step 5: Solve for x
   x = 126,960,981.68/13,029.42
6. Step 6: Final answer
   x = 9,744.18