Finding the Fourth Proportional to 13,377.89, 18,461.52 and 7,409.44

Step by Step Solution

1. Step 1: Write the proportion equation
   13,377.89 : 18,461.52 = 7,409.44 : x
2. Step 2: Convert to fraction form
   13,377.89/18,461.52 = 7,409.44/x
3. Step 3: Cross multiply
   13,377.89x = 18,461.52 × 7,409.44
4. Step 4: Simplify right side
   13,377.89x = 136,789,547.83
5. Step 5: Solve for x
   x = 136,789,547.83/13,377.89
6. Step 6: Final answer
   x = 10,225.04