Finding the Fourth Proportional to 12,456.30, 17,181.83 and 7,416.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,456.30 : 17,181.83 = 7,416.75 : x
2. Step 2: Convert to fraction form
   12,456.30/17,181.83 = 7,416.75/x
3. Step 3: Cross multiply
   12,456.30x = 17,181.83 × 7,416.75
4. Step 4: Simplify right side
   12,456.30x = 127,433,356.19
5. Step 5: Solve for x
   x = 127,433,356.19/12,456.30
6. Step 6: Final answer
   x = 10,230.43