Finding the Fourth Proportional to 9,142.67, 12,617.12 and 5,607.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142.67 : 12,617.12 = 5,607.83 : x
2. Step 2: Convert to fraction form
   9,142.67/12,617.12 = 5,607.83/x
3. Step 3: Cross multiply
   9,142.67x = 12,617.12 × 5,607.83
4. Step 4: Simplify right side
   9,142.67x = 70,754,664.05
5. Step 5: Solve for x
   x = 70,754,664.05/9,142.67
6. Step 6: Final answer
   x = 7,738.95