Finding the Fourth Proportional to 12,890.52, 17,789.28 and 7,301.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,890.52 : 17,789.28 = 7,301.52 : x
2. Step 2: Convert to fraction form
   12,890.52/17,789.28 = 7,301.52/x
3. Step 3: Cross multiply
   12,890.52x = 17,789.28 × 7,301.52
4. Step 4: Simplify right side
   12,890.52x = 129,888,783.71
5. Step 5: Solve for x
   x = 129,888,783.71/12,890.52
6. Step 6: Final answer
   x = 10,076.30