Finding the Fourth Proportional to 8,684.61, 13,019.60 and 5,903.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,684.61 : 13,019.60 = 5,903.48 : x
2. Step 2: Convert to fraction form
   8,684.61/13,019.60 = 5,903.48/x
3. Step 3: Cross multiply
   8,684.61x = 13,019.60 × 5,903.48
4. Step 4: Simplify right side
   8,684.61x = 76,860,853.59
5. Step 5: Solve for x
   x = 76,860,853.59/8,684.61
6. Step 6: Final answer
   x = 8,850.24