Finding the Fourth Proportional to 5,387.34, 7,435.74 and 3,150.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,387.34 : 7,435.74 = 3,150.30 : x
2. Step 2: Convert to fraction form
   5,387.34/7,435.74 = 3,150.30/x
3. Step 3: Cross multiply
   5,387.34x = 7,435.74 × 3,150.30
4. Step 4: Simplify right side
   5,387.34x = 23,424,811.72
5. Step 5: Solve for x
   x = 23,424,811.72/5,387.34
6. Step 6: Final answer
   x = 4,348.12