Finding the Fourth Proportional to 12,334.86, 18,503.19 and 3,903.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,334.86 : 18,503.19 = 3,903.30 : x
2. Step 2: Convert to fraction form
   12,334.86/18,503.19 = 3,903.30/x
3. Step 3: Cross multiply
   12,334.86x = 18,503.19 × 3,903.30
4. Step 4: Simplify right side
   12,334.86x = 72,223,501.53
5. Step 5: Solve for x
   x = 72,223,501.53/12,334.86
6. Step 6: Final answer
   x = 5,855.23