Finding the Fourth Proportional to 13,667.37, 18,860.88 and 7,698.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,667.37 : 18,860.88 = 7,698.88 : x
2. Step 2: Convert to fraction form
   13,667.37/18,860.88 = 7,698.88/x
3. Step 3: Cross multiply
   13,667.37x = 18,860.88 × 7,698.88
4. Step 4: Simplify right side
   13,667.37x = 145,207,651.81
5. Step 5: Solve for x
   x = 145,207,651.81/13,667.37
6. Step 6: Final answer
   x = 10,624.40