Finding the Fourth Proportional to 9,146.46, 12,619.98 and 5,561.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,146.46 : 12,619.98 = 5,561.34 : x
2. Step 2: Convert to fraction form
   9,146.46/12,619.98 = 5,561.34/x
3. Step 3: Cross multiply
   9,146.46x = 12,619.98 × 5,561.34
4. Step 4: Simplify right side
   9,146.46x = 70,183,999.57
5. Step 5: Solve for x
   x = 70,183,999.57/9,146.46
6. Step 6: Final answer
   x = 7,673.35