Finding the Fourth Proportional to 9,967.38, 13,754.54 and 5,715.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,967.38 : 13,754.54 = 5,715.41 : x
2. Step 2: Convert to fraction form
   9,967.38/13,754.54 = 5,715.41/x
3. Step 3: Cross multiply
   9,967.38x = 13,754.54 × 5,715.41
4. Step 4: Simplify right side
   9,967.38x = 78,612,738.11
5. Step 5: Solve for x
   x = 78,612,738.11/9,967.38
6. Step 6: Final answer
   x = 7,887.00