Finding the Fourth Proportional to 13,354.83, 18,429.30 and 7,386.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,354.83 : 18,429.30 = 7,386.30 : x
2. Step 2: Convert to fraction form
   13,354.83/18,429.30 = 7,386.30/x
3. Step 3: Cross multiply
   13,354.83x = 18,429.30 × 7,386.30
4. Step 4: Simplify right side
   13,354.83x = 136,124,338.59
5. Step 5: Solve for x
   x = 136,124,338.59/13,354.83
6. Step 6: Final answer
   x = 10,192.89