Finding the Fourth Proportional to 9,403.18, 12,976.38 and 5,626.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,403.18 : 12,976.38 = 5,626.51 : x
2. Step 2: Convert to fraction form
   9,403.18/12,976.38 = 5,626.51/x
3. Step 3: Cross multiply
   9,403.18x = 12,976.38 × 5,626.51
4. Step 4: Simplify right side
   9,403.18x = 73,011,699.39
5. Step 5: Solve for x
   x = 73,011,699.39/9,403.18
6. Step 6: Final answer
   x = 7,764.58