Finding the Fourth Proportional to 12,651.74, 17,455.51 and 7,345.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,651.74 : 17,455.51 = 7,345.49 : x
2. Step 2: Convert to fraction form
   12,651.74/17,455.51 = 7,345.49/x
3. Step 3: Cross multiply
   12,651.74x = 17,455.51 × 7,345.49
4. Step 4: Simplify right side
   12,651.74x = 128,219,274.15
5. Step 5: Solve for x
   x = 128,219,274.15/12,651.74
6. Step 6: Final answer
   x = 10,134.52