Finding the Fourth Proportional to 13,756.33, 18,983.59 and 7,787.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,756.33 : 18,983.59 = 7,787.89 : x
2. Step 2: Convert to fraction form
   13,756.33/18,983.59 = 7,787.89/x
3. Step 3: Cross multiply
   13,756.33x = 18,983.59 × 7,787.89
4. Step 4: Simplify right side
   13,756.33x = 147,842,110.73
5. Step 5: Solve for x
   x = 147,842,110.73/13,756.33
6. Step 6: Final answer
   x = 10,747.21