Finding the Fourth Proportional to 16,784.10, 23,156.29 and 10,408.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,784.10 : 23,156.29 = 10,408.40 : x
2. Step 2: Convert to fraction form
   16,784.10/23,156.29 = 10,408.40/x
3. Step 3: Cross multiply
   16,784.10x = 23,156.29 × 10,408.40
4. Step 4: Simplify right side
   16,784.10x = 241,019,928.84
5. Step 5: Solve for x
   x = 241,019,928.84/16,784.10
6. Step 6: Final answer
   x = 14,360.02