Finding the Fourth Proportional to 9,414.55, 14,123.45 and 3,870.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,414.55 : 14,123.45 = 3,870.91 : x
2. Step 2: Convert to fraction form
   9,414.55/14,123.45 = 3,870.91/x
3. Step 3: Cross multiply
   9,414.55x = 14,123.45 × 3,870.91
4. Step 4: Simplify right side
   9,414.55x = 54,670,603.84
5. Step 5: Solve for x
   x = 54,670,603.84/9,414.55
6. Step 6: Final answer
   x = 5,807.03