Finding the Fourth Proportional to 16,731.77, 23,113.86 and 13,370.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,731.77 : 23,113.86 = 13,370.16 : x
2. Step 2: Convert to fraction form
   16,731.77/23,113.86 = 13,370.16/x
3. Step 3: Cross multiply
   16,731.77x = 23,113.86 × 13,370.16
4. Step 4: Simplify right side
   16,731.77x = 309,036,042.96
5. Step 5: Solve for x
   x = 309,036,042.96/16,731.77
6. Step 6: Final answer
   x = 18,470.02