Finding the Fourth Proportional to 9,279.04, 13,920.50 and 3,038.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,279.04 : 13,920.50 = 3,038.57 : x
2. Step 2: Convert to fraction form
   9,279.04/13,920.50 = 3,038.57/x
3. Step 3: Cross multiply
   9,279.04x = 13,920.50 × 3,038.57
4. Step 4: Simplify right side
   9,279.04x = 42,298,398.49
5. Step 5: Solve for x
   x = 42,298,398.49/9,279.04
6. Step 6: Final answer
   x = 4,558.49