Finding the Fourth Proportional to 9,152.92, 12,630.95 and 5,174.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,152.92 : 12,630.95 = 5,174.03 : x
2. Step 2: Convert to fraction form
   9,152.92/12,630.95 = 5,174.03/x
3. Step 3: Cross multiply
   9,152.92x = 12,630.95 × 5,174.03
4. Step 4: Simplify right side
   9,152.92x = 65,352,897.39
5. Step 5: Solve for x
   x = 65,352,897.39/9,152.92
6. Step 6: Final answer
   x = 7,140.12