Finding the Fourth Proportional to 11,858.58, 17,787.81 and 3,093.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,858.58 : 17,787.81 = 3,093.30 : x
2. Step 2: Convert to fraction form
   11,858.58/17,787.81 = 3,093.30/x
3. Step 3: Cross multiply
   11,858.58x = 17,787.81 × 3,093.30
4. Step 4: Simplify right side
   11,858.58x = 55,023,032.67
5. Step 5: Solve for x
   x = 55,023,032.67/11,858.58
6. Step 6: Final answer
   x = 4,639.93