Finding the Fourth Proportional to 13,906.83, 19,188.32 and 7,936.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,906.83 : 19,188.32 = 7,936.59 : x
2. Step 2: Convert to fraction form
   13,906.83/19,188.32 = 7,936.59/x
3. Step 3: Cross multiply
   13,906.83x = 19,188.32 × 7,936.59
4. Step 4: Simplify right side
   13,906.83x = 152,289,788.95
5. Step 5: Solve for x
   x = 152,289,788.95/13,906.83
6. Step 6: Final answer
   x = 10,950.72