Finding the Fourth Proportional to 13,989.05, 19,304.96 and 7,701.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,989.05 : 19,304.96 = 7,701.42 : x
2. Step 2: Convert to fraction form
   13,989.05/19,304.96 = 7,701.42/x
3. Step 3: Cross multiply
   13,989.05x = 19,304.96 × 7,701.42
4. Step 4: Simplify right side
   13,989.05x = 148,675,566.54
5. Step 5: Solve for x
   x = 148,675,566.54/13,989.05
6. Step 6: Final answer
   x = 10,628.00