Finding the Fourth Proportional to 7,105.84, 9,807.18 and 4,123.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,105.84 : 9,807.18 = 4,123.48 : x
2. Step 2: Convert to fraction form
   7,105.84/9,807.18 = 4,123.48/x
3. Step 3: Cross multiply
   7,105.84x = 9,807.18 × 4,123.48
4. Step 4: Simplify right side
   7,105.84x = 40,439,710.59
5. Step 5: Solve for x
   x = 40,439,710.59/7,105.84
6. Step 6: Final answer
   x = 5,691.05