Finding the Fourth Proportional to 13,896.90, 19,177.83 and 7,928.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,896.90 : 19,177.83 = 7,928.82 : x
2. Step 2: Convert to fraction form
   13,896.90/19,177.83 = 7,928.82/x
3. Step 3: Cross multiply
   13,896.90x = 19,177.83 × 7,928.82
4. Step 4: Simplify right side
   13,896.90x = 152,057,562.06
5. Step 5: Solve for x
   x = 152,057,562.06/13,896.90
6. Step 6: Final answer
   x = 10,941.83