Finding the Fourth Proportional to 12,956.03, 17,879.72 and 7,290.65

Step by Step Solution

1. Step 1: Write the proportion equation
   12,956.03 : 17,879.72 = 7,290.65 : x
2. Step 2: Convert to fraction form
   12,956.03/17,879.72 = 7,290.65/x
3. Step 3: Cross multiply
   12,956.03x = 17,879.72 × 7,290.65
4. Step 4: Simplify right side
   12,956.03x = 130,354,654.77
5. Step 5: Solve for x
   x = 130,354,654.77/12,956.03
6. Step 6: Final answer
   x = 10,061.32