Finding the Fourth Proportional to 12,113.42, 18,166.29 and 3,903.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,113.42 : 18,166.29 = 3,903.50 : x
2. Step 2: Convert to fraction form
   12,113.42/18,166.29 = 3,903.50/x
3. Step 3: Cross multiply
   12,113.42x = 18,166.29 × 3,903.50
4. Step 4: Simplify right side
   12,113.42x = 70,912,113.02
5. Step 5: Solve for x
   x = 70,912,113.02/12,113.42
6. Step 6: Final answer
   x = 5,854.01