Finding the Fourth Proportional to 9,152.58, 12,630.06 and 5,174.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,152.58 : 12,630.06 = 5,174.49 : x
2. Step 2: Convert to fraction form
   9,152.58/12,630.06 = 5,174.49/x
3. Step 3: Cross multiply
   9,152.58x = 12,630.06 × 5,174.49
4. Step 4: Simplify right side
   9,152.58x = 65,354,119.17
5. Step 5: Solve for x
   x = 65,354,119.17/9,152.58
6. Step 6: Final answer
   x = 7,140.51