Finding the Fourth Proportional to 12,846.78, 17,725.59 and 7,541.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,846.78 : 17,725.59 = 7,541.34 : x
2. Step 2: Convert to fraction form
   12,846.78/17,725.59 = 7,541.34/x
3. Step 3: Cross multiply
   12,846.78x = 17,725.59 × 7,541.34
4. Step 4: Simplify right side
   12,846.78x = 133,674,700.89
5. Step 5: Solve for x
   x = 133,674,700.89/12,846.78
6. Step 6: Final answer
   x = 10,405.31