Finding the Fourth Proportional to 13,029.60, 17,980.83 and 7,061.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,029.60 : 17,980.83 = 7,061.43 : x
2. Step 2: Convert to fraction form
   13,029.60/17,980.83 = 7,061.43/x
3. Step 3: Cross multiply
   13,029.60x = 17,980.83 × 7,061.43
4. Step 4: Simplify right side
   13,029.60x = 126,970,372.39
5. Step 5: Solve for x
   x = 126,970,372.39/13,029.60
6. Step 6: Final answer
   x = 9,744.76