Finding the Fourth Proportional to 12,980.34, 17,894.22 and 9,247.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,980.34 : 17,894.22 = 9,247.86 : x
2. Step 2: Convert to fraction form
   12,980.34/17,894.22 = 9,247.86/x
3. Step 3: Cross multiply
   12,980.34x = 17,894.22 × 9,247.86
4. Step 4: Simplify right side
   12,980.34x = 165,483,241.37
5. Step 5: Solve for x
   x = 165,483,241.37/12,980.34
6. Step 6: Final answer
   x = 12,748.76