Finding the Fourth Proportional to 7,380.78, 10,185.31 and 4,023.46

Step by Step Solution

1. Step 1: Write the proportion equation
   7,380.78 : 10,185.31 = 4,023.46 : x
2. Step 2: Convert to fraction form
   7,380.78/10,185.31 = 4,023.46/x
3. Step 3: Cross multiply
   7,380.78x = 10,185.31 × 4,023.46
4. Step 4: Simplify right side
   7,380.78x = 40,980,167.26
5. Step 5: Solve for x
   x = 40,980,167.26/7,380.78
6. Step 6: Final answer
   x = 5,552.29