Finding the Fourth Proportional to 7,379.12, 10,182.78 and 4,192.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,379.12 : 10,182.78 = 4,192.34 : x
2. Step 2: Convert to fraction form
   7,379.12/10,182.78 = 4,192.34/x
3. Step 3: Cross multiply
   7,379.12x = 10,182.78 × 4,192.34
4. Step 4: Simplify right side
   7,379.12x = 42,689,675.91
5. Step 5: Solve for x
   x = 42,689,675.91/7,379.12
6. Step 6: Final answer
   x = 5,785.20