Finding the Fourth Proportional to 9,152.29, 12,631.82 and 5,173.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,152.29 : 12,631.82 = 5,173.39 : x
2. Step 2: Convert to fraction form
   9,152.29/12,631.82 = 5,173.39/x
3. Step 3: Cross multiply
   9,152.29x = 12,631.82 × 5,173.39
4. Step 4: Simplify right side
   9,152.29x = 65,349,400.37
5. Step 5: Solve for x
   x = 65,349,400.37/9,152.29
6. Step 6: Final answer
   x = 7,140.22