Finding the Fourth Proportional to 6,123.40, 8,443.08 and 5,669.46

Step by Step Solution

1. Step 1: Write the proportion equation
   6,123.40 : 8,443.08 = 5,669.46 : x
2. Step 2: Convert to fraction form
   6,123.40/8,443.08 = 5,669.46/x
3. Step 3: Cross multiply
   6,123.40x = 8,443.08 × 5,669.46
4. Step 4: Simplify right side
   6,123.40x = 47,867,704.34
5. Step 5: Solve for x
   x = 47,867,704.34/6,123.40
6. Step 6: Final answer
   x = 7,817.18