Finding the Fourth Proportional to 9,003.93, 12,431.39 and 5,865.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,003.93 : 12,431.39 = 5,865.45 : x
2. Step 2: Convert to fraction form
   9,003.93/12,431.39 = 5,865.45/x
3. Step 3: Cross multiply
   9,003.93x = 12,431.39 × 5,865.45
4. Step 4: Simplify right side
   9,003.93x = 72,915,667.15
5. Step 5: Solve for x
   x = 72,915,667.15/9,003.93
6. Step 6: Final answer
   x = 8,098.20