Finding the Fourth Proportional to 12,250.41, 18,386.89 and 7,579.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,250.41 : 18,386.89 = 7,579.54 : x
2. Step 2: Convert to fraction form
   12,250.41/18,386.89 = 7,579.54/x
3. Step 3: Cross multiply
   12,250.41x = 18,386.89 × 7,579.54
4. Step 4: Simplify right side
   12,250.41x = 139,364,166.20
5. Step 5: Solve for x
   x = 139,364,166.20/12,250.41
6. Step 6: Final answer
   x = 11,376.29