Finding the Fourth Proportional to 7,379.62, 11,072.70 and 3,868.80

Step by Step Solution

1. Step 1: Write the proportion equation
   7,379.62 : 11,072.70 = 3,868.80 : x
2. Step 2: Convert to fraction form
   7,379.62/11,072.70 = 3,868.80/x
3. Step 3: Cross multiply
   7,379.62x = 11,072.70 × 3,868.80
4. Step 4: Simplify right side
   7,379.62x = 42,838,061.76
5. Step 5: Solve for x
   x = 42,838,061.76/7,379.62
6. Step 6: Final answer
   x = 5,804.91