Finding the Fourth Proportional to 13,147.65, 18,143.86 and 7,482.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,147.65 : 18,143.86 = 7,482.83 : x
2. Step 2: Convert to fraction form
   13,147.65/18,143.86 = 7,482.83/x
3. Step 3: Cross multiply
   13,147.65x = 18,143.86 × 7,482.83
4. Step 4: Simplify right side
   13,147.65x = 135,767,372.89
5. Step 5: Solve for x
   x = 135,767,372.89/13,147.65
6. Step 6: Final answer
   x = 10,326.36