Finding the Fourth Proportional to 13,951.84, 19,254.72 and 7,665.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,951.84 : 19,254.72 = 7,665.36 : x
2. Step 2: Convert to fraction form
   13,951.84/19,254.72 = 7,665.36/x
3. Step 3: Cross multiply
   13,951.84x = 19,254.72 × 7,665.36
4. Step 4: Simplify right side
   13,951.84x = 147,594,360.50
5. Step 5: Solve for x
   x = 147,594,360.50/13,951.84
6. Step 6: Final answer
   x = 10,578.85