Finding the Fourth Proportional to 12,954.47, 17,875.89 and 7,289.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,954.47 : 17,875.89 = 7,289.10 : x
2. Step 2: Convert to fraction form
   12,954.47/17,875.89 = 7,289.10/x
3. Step 3: Cross multiply
   12,954.47x = 17,875.89 × 7,289.10
4. Step 4: Simplify right side
   12,954.47x = 130,299,149.80
5. Step 5: Solve for x
   x = 130,299,149.80/12,954.47
6. Step 6: Final answer
   x = 10,058.24