Finding the Fourth Proportional to 7,146.98, 10,727.31 and 2,985.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,146.98 : 10,727.31 = 2,985.89 : x
2. Step 2: Convert to fraction form
   7,146.98/10,727.31 = 2,985.89/x
3. Step 3: Cross multiply
   7,146.98x = 10,727.31 × 2,985.89
4. Step 4: Simplify right side
   7,146.98x = 32,030,546.99
5. Step 5: Solve for x
   x = 32,030,546.99/7,146.98
6. Step 6: Final answer
   x = 4,481.69