Finding the Fourth Proportional to 13,372.83, 18,454.46 and 7,404.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,372.83 : 18,454.46 = 7,404.89 : x
2. Step 2: Convert to fraction form
   13,372.83/18,454.46 = 7,404.89/x
3. Step 3: Cross multiply
   13,372.83x = 18,454.46 × 7,404.89
4. Step 4: Simplify right side
   13,372.83x = 136,653,117.01
5. Step 5: Solve for x
   x = 136,653,117.01/13,372.83
6. Step 6: Final answer
   x = 10,218.71