Finding the Fourth Proportional to 13,988.83, 19,306.43 and 8,019.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,988.83 : 19,306.43 = 8,019.34 : x
2. Step 2: Convert to fraction form
   13,988.83/19,306.43 = 8,019.34/x
3. Step 3: Cross multiply
   13,988.83x = 19,306.43 × 8,019.34
4. Step 4: Simplify right side
   13,988.83x = 154,824,826.96
5. Step 5: Solve for x
   x = 154,824,826.96/13,988.83
6. Step 6: Final answer
   x = 11,067.75