Finding the Fourth Proportional to 10,358.63, 14,300.21 and 7,019.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,358.63 : 14,300.21 = 7,019.09 : x
2. Step 2: Convert to fraction form
   10,358.63/14,300.21 = 7,019.09/x
3. Step 3: Cross multiply
   10,358.63x = 14,300.21 × 7,019.09
4. Step 4: Simplify right side
   10,358.63x = 100,374,425.91
5. Step 5: Solve for x
   x = 100,374,425.91/10,358.63
6. Step 6: Final answer
   x = 9,689.93