Finding the Fourth Proportional to 13,959.45, 19,263.83 and 7,671.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,959.45 : 19,263.83 = 7,671.69 : x
2. Step 2: Convert to fraction form
   13,959.45/19,263.83 = 7,671.69/x
3. Step 3: Cross multiply
   13,959.45x = 19,263.83 × 7,671.69
4. Step 4: Simplify right side
   13,959.45x = 147,786,093.61
5. Step 5: Solve for x
   x = 147,786,093.61/13,959.45
6. Step 6: Final answer
   x = 10,586.81