Finding the Fourth Proportional to 8,290.68, 12,429.81 and 5,003

Step by Step Solution

1. Step 1: Write the proportion equation
   8,290.68 : 12,429.81 = 5,003 : x
2. Step 2: Convert to fraction form
   8,290.68/12,429.81 = 5,003/x
3. Step 3: Cross multiply
   8,290.68x = 12,429.81 × 5,003
4. Step 4: Simplify right side
   8,290.68x = 62,186,339.43
5. Step 5: Solve for x
   x = 62,186,339.43/8,290.68
6. Step 6: Final answer
   x = 7,500.75