Finding the Fourth Proportional to 13,808.55, 19,056.83 and 7,759.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,808.55 : 19,056.83 = 7,759.49 : x
2. Step 2: Convert to fraction form
   13,808.55/19,056.83 = 7,759.49/x
3. Step 3: Cross multiply
   13,808.55x = 19,056.83 × 7,759.49
4. Step 4: Simplify right side
   13,808.55x = 147,871,281.82
5. Step 5: Solve for x
   x = 147,871,281.82/13,808.55
6. Step 6: Final answer
   x = 10,708.68