Finding the Fourth Proportional to 13,908.63, 19,152.03 and 12,016.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,908.63 : 19,152.03 = 12,016.89 : x
2. Step 2: Convert to fraction form
   13,908.63/19,152.03 = 12,016.89/x
3. Step 3: Cross multiply
   13,908.63x = 19,152.03 × 12,016.89
4. Step 4: Simplify right side
   13,908.63x = 230,147,837.79
5. Step 5: Solve for x
   x = 230,147,837.79/13,908.63
6. Step 6: Final answer
   x = 16,547.12