Finding the Fourth Proportional to 12,954.05, 17,876.18 and 7,289.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,954.05 : 17,876.18 = 7,289.12 : x
2. Step 2: Convert to fraction form
   12,954.05/17,876.18 = 7,289.12/x
3. Step 3: Cross multiply
   12,954.05x = 17,876.18 × 7,289.12
4. Step 4: Simplify right side
   12,954.05x = 130,301,495.34
5. Step 5: Solve for x
   x = 130,301,495.34/12,954.05
6. Step 6: Final answer
   x = 10,058.75