Finding the Fourth Proportional to 9,139.18, 13,707.20 and 3,294.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139.18 : 13,707.20 = 3,294.94 : x
2. Step 2: Convert to fraction form
   9,139.18/13,707.20 = 3,294.94/x
3. Step 3: Cross multiply
   9,139.18x = 13,707.20 × 3,294.94
4. Step 4: Simplify right side
   9,139.18x = 45,164,401.57
5. Step 5: Solve for x
   x = 45,164,401.57/9,139.18
6. Step 6: Final answer
   x = 4,941.84