Finding the Fourth Proportional to 13,045.12, 18,002.59 and 7,379.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,045.12 : 18,002.59 = 7,379.60 : x
2. Step 2: Convert to fraction form
   13,045.12/18,002.59 = 7,379.60/x
3. Step 3: Cross multiply
   13,045.12x = 18,002.59 × 7,379.60
4. Step 4: Simplify right side
   13,045.12x = 132,851,804.70
5. Step 5: Solve for x
   x = 132,851,804.70/13,045.12
6. Step 6: Final answer
   x = 10,184.03