Finding the Fourth Proportional to 8,123.09, 11,207.50 and 5,100.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.09 : 11,207.50 = 5,100.71 : x
2. Step 2: Convert to fraction form
   8,123.09/11,207.50 = 5,100.71/x
3. Step 3: Cross multiply
   8,123.09x = 11,207.50 × 5,100.71
4. Step 4: Simplify right side
   8,123.09x = 57,166,138.54
5. Step 5: Solve for x
   x = 57,166,138.54/8,123.09
6. Step 6: Final answer
   x = 7,037.49