Finding the Fourth Proportional to 9,141.94, 12,615.18 and 5,163.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.94 : 12,615.18 = 5,163.46 : x
2. Step 2: Convert to fraction form
   9,141.94/12,615.18 = 5,163.46/x
3. Step 3: Cross multiply
   9,141.94x = 12,615.18 × 5,163.46
4. Step 4: Simplify right side
   9,141.94x = 65,137,977.32
5. Step 5: Solve for x
   x = 65,137,977.32/9,141.94
6. Step 6: Final answer
   x = 7,125.18