Finding the Fourth Proportional to 13,827.51, 19,076.72 and 7,856.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,827.51 : 19,076.72 = 7,856.19 : x
2. Step 2: Convert to fraction form
   13,827.51/19,076.72 = 7,856.19/x
3. Step 3: Cross multiply
   13,827.51x = 19,076.72 × 7,856.19
4. Step 4: Simplify right side
   13,827.51x = 149,870,297.62
5. Step 5: Solve for x
   x = 149,870,297.62/13,827.51
6. Step 6: Final answer
   x = 10,838.56