Finding the Fourth Proportional to 9,407.63, 12,982.15 and 5,628.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407.63 : 12,982.15 = 5,628.58 : x
2. Step 2: Convert to fraction form
   9,407.63/12,982.15 = 5,628.58/x
3. Step 3: Cross multiply
   9,407.63x = 12,982.15 × 5,628.58
4. Step 4: Simplify right side
   9,407.63x = 73,071,069.85
5. Step 5: Solve for x
   x = 73,071,069.85/9,407.63
6. Step 6: Final answer
   x = 7,767.21