Finding the Fourth Proportional to 12,173.16, 18,258.82 and 5,152.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,173.16 : 18,258.82 = 5,152.89 : x
2. Step 2: Convert to fraction form
   12,173.16/18,258.82 = 5,152.89/x
3. Step 3: Cross multiply
   12,173.16x = 18,258.82 × 5,152.89
4. Step 4: Simplify right side
   12,173.16x = 94,085,690.99
5. Step 5: Solve for x
   x = 94,085,690.99/12,173.16
6. Step 6: Final answer
   x = 7,728.95