Finding the Fourth Proportional to 13,085.78, 18,056.40 and 8,050.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,085.78 : 18,056.40 = 8,050.82 : x
2. Step 2: Convert to fraction form
   13,085.78/18,056.40 = 8,050.82/x
3. Step 3: Cross multiply
   13,085.78x = 18,056.40 × 8,050.82
4. Step 4: Simplify right side
   13,085.78x = 145,368,826.25
5. Step 5: Solve for x
   x = 145,368,826.25/13,085.78
6. Step 6: Final answer
   x = 11,108.92