Finding the Fourth Proportional to 9,152.48, 12,630.29 and 5,173.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,152.48 : 12,630.29 = 5,173.46 : x
2. Step 2: Convert to fraction form
   9,152.48/12,630.29 = 5,173.46/x
3. Step 3: Cross multiply
   9,152.48x = 12,630.29 × 5,173.46
4. Step 4: Simplify right side
   9,152.48x = 65,342,300.10
5. Step 5: Solve for x
   x = 65,342,300.10/9,152.48
6. Step 6: Final answer
   x = 7,139.30