Finding the Fourth Proportional to 12,257.72, 18,373.58 and 5,231.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,257.72 : 18,373.58 = 5,231.98 : x
2. Step 2: Convert to fraction form
   12,257.72/18,373.58 = 5,231.98/x
3. Step 3: Cross multiply
   12,257.72x = 18,373.58 × 5,231.98
4. Step 4: Simplify right side
   12,257.72x = 96,130,111.22
5. Step 5: Solve for x
   x = 96,130,111.22/12,257.72
6. Step 6: Final answer
   x = 7,842.42