Finding the Fourth Proportional to 13,350.98, 18,425.72 and 7,685.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,350.98 : 18,425.72 = 7,685.94 : x
2. Step 2: Convert to fraction form
   13,350.98/18,425.72 = 7,685.94/x
3. Step 3: Cross multiply
   13,350.98x = 18,425.72 × 7,685.94
4. Step 4: Simplify right side
   13,350.98x = 141,618,978.38
5. Step 5: Solve for x
   x = 141,618,978.38/13,350.98
6. Step 6: Final answer
   x = 10,607.38