Finding the Fourth Proportional to 13,427.57, 18,529.42 and 7,459.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,427.57 : 18,529.42 = 7,459.61 : x
2. Step 2: Convert to fraction form
   13,427.57/18,529.42 = 7,459.61/x
3. Step 3: Cross multiply
   13,427.57x = 18,529.42 × 7,459.61
4. Step 4: Simplify right side
   13,427.57x = 138,222,195.89
5. Step 5: Solve for x
   x = 138,222,195.89/13,427.57
6. Step 6: Final answer
   x = 10,293.91