Finding the Fourth Proportional to 13,757.56, 18,985.42 and 7,469.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,757.56 : 18,985.42 = 7,469.94 : x
2. Step 2: Convert to fraction form
   13,757.56/18,985.42 = 7,469.94/x
3. Step 3: Cross multiply
   13,757.56x = 18,985.42 × 7,469.94
4. Step 4: Simplify right side
   13,757.56x = 141,819,922.01
5. Step 5: Solve for x
   x = 141,819,922.01/13,757.56
6. Step 6: Final answer
   x = 10,308.51