Finding the Fourth Proportional to 9,150.42, 12,627.81 and 5,615.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.42 : 12,627.81 = 5,615.58 : x
2. Step 2: Convert to fraction form
   9,150.42/12,627.81 = 5,615.58/x
3. Step 3: Cross multiply
   9,150.42x = 12,627.81 × 5,615.58
4. Step 4: Simplify right side
   9,150.42x = 70,912,477.28
5. Step 5: Solve for x
   x = 70,912,477.28/9,150.42
6. Step 6: Final answer
   x = 7,749.64