Finding the Fourth Proportional to 12,883.34, 17,774.98 and 7,217.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,883.34 : 17,774.98 = 7,217.33 : x
2. Step 2: Convert to fraction form
   12,883.34/17,774.98 = 7,217.33/x
3. Step 3: Cross multiply
   12,883.34x = 17,774.98 × 7,217.33
4. Step 4: Simplify right side
   12,883.34x = 128,287,789.49
5. Step 5: Solve for x
   x = 128,287,789.49/12,883.34
6. Step 6: Final answer
   x = 9,957.65