Finding the Fourth Proportional to 13,868.89, 19,134.39 and 7,896.33

Step by Step Solution

1. Step 1: Write the proportion equation
   13,868.89 : 19,134.39 = 7,896.33 : x
2. Step 2: Convert to fraction form
   13,868.89/19,134.39 = 7,896.33/x
3. Step 3: Cross multiply
   13,868.89x = 19,134.39 × 7,896.33
4. Step 4: Simplify right side
   13,868.89x = 151,091,457.79
5. Step 5: Solve for x
   x = 151,091,457.79/13,868.89
6. Step 6: Final answer
   x = 10,894.27