Finding the Fourth Proportional to 9,136.70, 12,608.33 and 5,103.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,136.70 : 12,608.33 = 5,103.74 : x
2. Step 2: Convert to fraction form
   9,136.70/12,608.33 = 5,103.74/x
3. Step 3: Cross multiply
   9,136.70x = 12,608.33 × 5,103.74
4. Step 4: Simplify right side
   9,136.70x = 64,349,549.59
5. Step 5: Solve for x
   x = 64,349,549.59/9,136.70
6. Step 6: Final answer
   x = 7,042.98