Finding the Fourth Proportional to 16,792.32, 23,181.12 and 12,316.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,792.32 : 23,181.12 = 12,316.32 : x
2. Step 2: Convert to fraction form
   16,792.32/23,181.12 = 12,316.32/x
3. Step 3: Cross multiply
   16,792.32x = 23,181.12 × 12,316.32
4. Step 4: Simplify right side
   16,792.32x = 285,506,091.88
5. Step 5: Solve for x
   x = 285,506,091.88/16,792.32
6. Step 6: Final answer
   x = 17,002.18