Finding the Fourth Proportional to 13,373.23, 18,455.61 and 7,404.79

Step by Step Solution

1. Step 1: Write the proportion equation
   13,373.23 : 18,455.61 = 7,404.79 : x
2. Step 2: Convert to fraction form
   13,373.23/18,455.61 = 7,404.79/x
3. Step 3: Cross multiply
   13,373.23x = 18,455.61 × 7,404.79
4. Step 4: Simplify right side
   13,373.23x = 136,659,916.37
5. Step 5: Solve for x
   x = 136,659,916.37/13,373.23
6. Step 6: Final answer
   x = 10,218.92