Finding the Fourth Proportional to 19,592.72, 27,019.24 and 12,884

Step by Step Solution

1. Step 1: Write the proportion equation
   19,592.72 : 27,019.24 = 12,884 : x
2. Step 2: Convert to fraction form
   19,592.72/27,019.24 = 12,884/x
3. Step 3: Cross multiply
   19,592.72x = 27,019.24 × 12,884
4. Step 4: Simplify right side
   19,592.72x = 348,115,888.16
5. Step 5: Solve for x
   x = 348,115,888.16/19,592.72
6. Step 6: Final answer
   x = 17,767.61