Finding the Fourth Proportional to 13,955.16, 19,258.42 and 7,667.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,955.16 : 19,258.42 = 7,667.80 : x
2. Step 2: Convert to fraction form
   13,955.16/19,258.42 = 7,667.80/x
3. Step 3: Cross multiply
   13,955.16x = 19,258.42 × 7,667.80
4. Step 4: Simplify right side
   13,955.16x = 147,669,712.88
5. Step 5: Solve for x
   x = 147,669,712.88/13,955.16
6. Step 6: Final answer
   x = 10,581.73