Finding the Fourth Proportional to 8,300.48, 12,427.63 and 5,369.90

Step by Step Solution

1. Step 1: Write the proportion equation
   8,300.48 : 12,427.63 = 5,369.90 : x
2. Step 2: Convert to fraction form
   8,300.48/12,427.63 = 5,369.90/x
3. Step 3: Cross multiply
   8,300.48x = 12,427.63 × 5,369.90
4. Step 4: Simplify right side
   8,300.48x = 66,735,054.77
5. Step 5: Solve for x
   x = 66,735,054.77/8,300.48
6. Step 6: Final answer
   x = 8,039.91