Finding the Fourth Proportional to 5,389.89, 7,438.64 and 3,152.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,389.89 : 7,438.64 = 3,152.52 : x
2. Step 2: Convert to fraction form
   5,389.89/7,438.64 = 3,152.52/x
3. Step 3: Cross multiply
   5,389.89x = 7,438.64 × 3,152.52
4. Step 4: Simplify right side
   5,389.89x = 23,450,445.61
5. Step 5: Solve for x
   x = 23,450,445.61/5,389.89
6. Step 6: Final answer
   x = 4,350.82