Finding the Fourth Proportional to 12,554.02, 17,347.47 and 9,145.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,554.02 : 17,347.47 = 9,145.10 : x
2. Step 2: Convert to fraction form
   12,554.02/17,347.47 = 9,145.10/x
3. Step 3: Cross multiply
   12,554.02x = 17,347.47 × 9,145.10
4. Step 4: Simplify right side
   12,554.02x = 158,644,215.43
5. Step 5: Solve for x
   x = 158,644,215.43/12,554.02
6. Step 6: Final answer
   x = 12,636.93