Finding the Fourth Proportional to 9,152.99, 12,630.98 and 5,173.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,152.99 : 12,630.98 = 5,173.96 : x
2. Step 2: Convert to fraction form
   9,152.99/12,630.98 = 5,173.96/x
3. Step 3: Cross multiply
   9,152.99x = 12,630.98 × 5,173.96
4. Step 4: Simplify right side
   9,152.99x = 65,352,166.64
5. Step 5: Solve for x
   x = 65,352,166.64/9,152.99
6. Step 6: Final answer
   x = 7,139.98