Finding the Fourth Proportional to 6,426.51, 8,871.57 and 4,071.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,426.51 : 8,871.57 = 4,071.84 : x
2. Step 2: Convert to fraction form
   6,426.51/8,871.57 = 4,071.84/x
3. Step 3: Cross multiply
   6,426.51x = 8,871.57 × 4,071.84
4. Step 4: Simplify right side
   6,426.51x = 36,123,613.59
5. Step 5: Solve for x
   x = 36,123,613.59/6,426.51
6. Step 6: Final answer
   x = 5,621.03