Finding the Fourth Proportional to 8,900.07, 12,283.01 and 5,123.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,900.07 : 12,283.01 = 5,123.38 : x
2. Step 2: Convert to fraction form
   8,900.07/12,283.01 = 5,123.38/x
3. Step 3: Cross multiply
   8,900.07x = 12,283.01 × 5,123.38
4. Step 4: Simplify right side
   8,900.07x = 62,930,527.77
5. Step 5: Solve for x
   x = 62,930,527.77/8,900.07
6. Step 6: Final answer
   x = 7,070.79