Finding the Fourth Proportional to 6,439.71, 8,886.06 and 3,606.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,439.71 : 8,886.06 = 3,606.69 : x
2. Step 2: Convert to fraction form
   6,439.71/8,886.06 = 3,606.69/x
3. Step 3: Cross multiply
   6,439.71x = 8,886.06 × 3,606.69
4. Step 4: Simplify right side
   6,439.71x = 32,049,263.74
5. Step 5: Solve for x
   x = 32,049,263.74/6,439.71
6. Step 6: Final answer
   x = 4,976.82