Finding the Fourth Proportional to 12,861.46, 17,749.50 and 7,195.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,861.46 : 17,749.50 = 7,195.86 : x
2. Step 2: Convert to fraction form
   12,861.46/17,749.50 = 7,195.86/x
3. Step 3: Cross multiply
   12,861.46x = 17,749.50 × 7,195.86
4. Step 4: Simplify right side
   12,861.46x = 127,722,940.01
5. Step 5: Solve for x
   x = 127,722,940.01/12,861.46
6. Step 6: Final answer
   x = 9,930.67