Finding the Fourth Proportional to 16,942.39, 23,381.02 and 9,388.02

Step by Step Solution

1. Step 1: Write the proportion equation
   16,942.39 : 23,381.02 = 9,388.02 : x
2. Step 2: Convert to fraction form
   16,942.39/23,381.02 = 9,388.02/x
3. Step 3: Cross multiply
   16,942.39x = 23,381.02 × 9,388.02
4. Step 4: Simplify right side
   16,942.39x = 219,501,411.67
5. Step 5: Solve for x
   x = 219,501,411.67/16,942.39
6. Step 6: Final answer
   x = 12,955.75