Finding the Fourth Proportional to 13,864.32, 19,130.55 and 7,896.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,864.32 : 19,130.55 = 7,896.10 : x
2. Step 2: Convert to fraction form
   13,864.32/19,130.55 = 7,896.10/x
3. Step 3: Cross multiply
   13,864.32x = 19,130.55 × 7,896.10
4. Step 4: Simplify right side
   13,864.32x = 151,056,735.86
5. Step 5: Solve for x
   x = 151,056,735.86/13,864.32
6. Step 6: Final answer
   x = 10,895.36