Finding the Fourth Proportional to 16,938.68, 25,403.94 and 7,072.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,938.68 : 25,403.94 = 7,072.61 : x
2. Step 2: Convert to fraction form
   16,938.68/25,403.94 = 7,072.61/x
3. Step 3: Cross multiply
   16,938.68x = 25,403.94 × 7,072.61
4. Step 4: Simplify right side
   16,938.68x = 179,672,223.59
5. Step 5: Solve for x
   x = 179,672,223.59/16,938.68
6. Step 6: Final answer
   x = 10,607.21