Finding the Fourth Proportional to 13,380.02, 18,464.56 and 7,411.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,380.02 : 18,464.56 = 7,411.77 : x
2. Step 2: Convert to fraction form
   13,380.02/18,464.56 = 7,411.77/x
3. Step 3: Cross multiply
   13,380.02x = 18,464.56 × 7,411.77
4. Step 4: Simplify right side
   13,380.02x = 136,855,053.34
5. Step 5: Solve for x
   x = 136,855,053.34/13,380.02
6. Step 6: Final answer
   x = 10,228.32