Finding the Fourth Proportional to 5,388.76, 7,436.76 and 3,150.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388.76 : 7,436.76 = 3,150.28 : x
2. Step 2: Convert to fraction form
   5,388.76/7,436.76 = 3,150.28/x
3. Step 3: Cross multiply
   5,388.76x = 7,436.76 × 3,150.28
4. Step 4: Simplify right side
   5,388.76x = 23,427,876.29
5. Step 5: Solve for x
   x = 23,427,876.29/5,388.76
6. Step 6: Final answer
   x = 4,347.54