Finding the Fourth Proportional to 12,613.50, 17,407.80 and 7,024.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613.50 : 17,407.80 = 7,024.50 : x
2. Step 2: Convert to fraction form
   12,613.50/17,407.80 = 7,024.50/x
3. Step 3: Cross multiply
   12,613.50x = 17,407.80 × 7,024.50
4. Step 4: Simplify right side
   12,613.50x = 122,281,091.10
5. Step 5: Solve for x
   x = 122,281,091.10/12,613.50
6. Step 6: Final answer
   x = 9,694.46