Finding the Fourth Proportional to 12,858.67, 17,746.61 and 7,193.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,858.67 : 17,746.61 = 7,193.73 : x
2. Step 2: Convert to fraction form
   12,858.67/17,746.61 = 7,193.73/x
3. Step 3: Cross multiply
   12,858.67x = 17,746.61 × 7,193.73
4. Step 4: Simplify right side
   12,858.67x = 127,664,284.79
5. Step 5: Solve for x
   x = 127,664,284.79/12,858.67
6. Step 6: Final answer
   x = 9,928.27