Finding the Fourth Proportional to 9,209.39, 12,710.15 and 5,623.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,209.39 : 12,710.15 = 5,623.58 : x
2. Step 2: Convert to fraction form
   9,209.39/12,710.15 = 5,623.58/x
3. Step 3: Cross multiply
   9,209.39x = 12,710.15 × 5,623.58
4. Step 4: Simplify right side
   9,209.39x = 71,476,453.67
5. Step 5: Solve for x
   x = 71,476,453.67/9,209.39
6. Step 6: Final answer
   x = 7,761.26