Finding the Fourth Proportional to 13,029.85, 17,981.16 and 7,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,029.85 : 17,981.16 = 7,061.50 : x
2. Step 2: Convert to fraction form
   13,029.85/17,981.16 = 7,061.50/x
3. Step 3: Cross multiply
   13,029.85x = 17,981.16 × 7,061.50
4. Step 4: Simplify right side
   13,029.85x = 126,973,871.43
5. Step 5: Solve for x
   x = 126,973,871.43/13,029.85
6. Step 6: Final answer
   x = 9,744.85