Finding the Fourth Proportional to 13,776.84, 19,010.94 and 8,111.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,776.84 : 19,010.94 = 8,111.82 : x
2. Step 2: Convert to fraction form
   13,776.84/19,010.94 = 8,111.82/x
3. Step 3: Cross multiply
   13,776.84x = 19,010.94 × 8,111.82
4. Step 4: Simplify right side
   13,776.84x = 154,213,323.31
5. Step 5: Solve for x
   x = 154,213,323.31/13,776.84
6. Step 6: Final answer
   x = 11,193.66