Finding the Fourth Proportional to 12,650, 17,457.18 and 7,061

Step by Step Solution

1. Step 1: Write the proportion equation
   12,650 : 17,457.18 = 7,061 : x
2. Step 2: Convert to fraction form
   12,650/17,457.18 = 7,061/x
3. Step 3: Cross multiply
   12,650x = 17,457.18 × 7,061
4. Step 4: Simplify right side
   12,650x = 123,265,147.98
5. Step 5: Solve for x
   x = 123,265,147.98/12,650
6. Step 6: Final answer
   x = 9,744.28