Finding the Fourth Proportional to 9,146.42, 12,622.30 and 5,607.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,146.42 : 12,622.30 = 5,607.56 : x
2. Step 2: Convert to fraction form
   9,146.42/12,622.30 = 5,607.56/x
3. Step 3: Cross multiply
   9,146.42x = 12,622.30 × 5,607.56
4. Step 4: Simplify right side
   9,146.42x = 70,780,322.12
5. Step 5: Solve for x
   x = 70,780,322.12/9,146.42
6. Step 6: Final answer
   x = 7,738.58