Finding the Fourth Proportional to 9,002.35, 12,422.46 and 5,815.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,002.35 : 12,422.46 = 5,815.80 : x
2. Step 2: Convert to fraction form
   9,002.35/12,422.46 = 5,815.80/x
3. Step 3: Cross multiply
   9,002.35x = 12,422.46 × 5,815.80
4. Step 4: Simplify right side
   9,002.35x = 72,246,564.68
5. Step 5: Solve for x
   x = 72,246,564.68/9,002.35
6. Step 6: Final answer
   x = 8,025.30