Finding the Fourth Proportional to 9,285.06, 12,813.45 and 5,093.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,285.06 : 12,813.45 = 5,093.31 : x
2. Step 2: Convert to fraction form
   9,285.06/12,813.45 = 5,093.31/x
3. Step 3: Cross multiply
   9,285.06x = 12,813.45 × 5,093.31
4. Step 4: Simplify right side
   9,285.06x = 65,262,873.02
5. Step 5: Solve for x
   x = 65,262,873.02/9,285.06
6. Step 6: Final answer
   x = 7,028.80