Finding the Fourth Proportional to 12,683.61, 17,510.42 and 7,649.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,683.61 : 17,510.42 = 7,649.10 : x
2. Step 2: Convert to fraction form
   12,683.61/17,510.42 = 7,649.10/x
3. Step 3: Cross multiply
   12,683.61x = 17,510.42 × 7,649.10
4. Step 4: Simplify right side
   12,683.61x = 133,938,953.62
5. Step 5: Solve for x
   x = 133,938,953.62/12,683.61
6. Step 6: Final answer
   x = 10,560.00