Finding the Fourth Proportional to 12,651.96, 17,458.37 and 7,345.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,651.96 : 17,458.37 = 7,345.74 : x
2. Step 2: Convert to fraction form
   12,651.96/17,458.37 = 7,345.74/x
3. Step 3: Cross multiply
   12,651.96x = 17,458.37 × 7,345.74
4. Step 4: Simplify right side
   12,651.96x = 128,244,559.55
5. Step 5: Solve for x
   x = 128,244,559.55/12,651.96
6. Step 6: Final answer
   x = 10,136.34