Finding the Fourth Proportional to 12,851.01, 17,734.74 and 7,185.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,851.01 : 17,734.74 = 7,185.60 : x
2. Step 2: Convert to fraction form
   12,851.01/17,734.74 = 7,185.60/x
3. Step 3: Cross multiply
   12,851.01x = 17,734.74 × 7,185.60
4. Step 4: Simplify right side
   12,851.01x = 127,434,747.74
5. Step 5: Solve for x
   x = 127,434,747.74/12,851.01
6. Step 6: Final answer
   x = 9,916.32