Finding the Fourth Proportional to 11,843.84, 17,765.82 and 3,078.77

Step by Step Solution

1. Step 1: Write the proportion equation
   11,843.84 : 17,765.82 = 3,078.77 : x
2. Step 2: Convert to fraction form
   11,843.84/17,765.82 = 3,078.77/x
3. Step 3: Cross multiply
   11,843.84x = 17,765.82 × 3,078.77
4. Step 4: Simplify right side
   11,843.84x = 54,696,784.81
5. Step 5: Solve for x
   x = 54,696,784.81/11,843.84
6. Step 6: Final answer
   x = 4,618.17