Finding the Fourth Proportional to 13,019.62, 17,967.08 and 7,051.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.62 : 17,967.08 = 7,051.31 : x
2. Step 2: Convert to fraction form
   13,019.62/17,967.08 = 7,051.31/x
3. Step 3: Cross multiply
   13,019.62x = 17,967.08 × 7,051.31
4. Step 4: Simplify right side
   13,019.62x = 126,691,450.87
5. Step 5: Solve for x
   x = 126,691,450.87/13,019.62
6. Step 6: Final answer
   x = 9,730.81