Finding the Fourth Proportional to 9,142.78, 12,616.98 and 4,951

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142.78 : 12,616.98 = 4,951 : x
2. Step 2: Convert to fraction form
   9,142.78/12,616.98 = 4,951/x
3. Step 3: Cross multiply
   9,142.78x = 12,616.98 × 4,951
4. Step 4: Simplify right side
   9,142.78x = 62,466,667.98
5. Step 5: Solve for x
   x = 62,466,667.98/9,142.78
6. Step 6: Final answer
   x = 6,832.35