Finding the Fourth Proportional to 9,158.38, 12,638.57 and 4,966.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,158.38 : 12,638.57 = 4,966.63 : x
2. Step 2: Convert to fraction form
   9,158.38/12,638.57 = 4,966.63/x
3. Step 3: Cross multiply
   9,158.38x = 12,638.57 × 4,966.63
4. Step 4: Simplify right side
   9,158.38x = 62,771,012.89
5. Step 5: Solve for x
   x = 62,771,012.89/9,158.38
6. Step 6: Final answer
   x = 6,853.95