Finding the Fourth Proportional to 6,389.30, 8,819.61 and 3,737.54

Step by Step Solution

1. Step 1: Write the proportion equation
   6,389.30 : 8,819.61 = 3,737.54 : x
2. Step 2: Convert to fraction form
   6,389.30/8,819.61 = 3,737.54/x
3. Step 3: Cross multiply
   6,389.30x = 8,819.61 × 3,737.54
4. Step 4: Simplify right side
   6,389.30x = 32,963,645.16
5. Step 5: Solve for x
   x = 32,963,645.16/6,389.30
6. Step 6: Final answer
   x = 5,159.20