Finding the Fourth Proportional to 9,364.98, 12,923.31 and 5,383.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,364.98 : 12,923.31 = 5,383.38 : x
2. Step 2: Convert to fraction form
   9,364.98/12,923.31 = 5,383.38/x
3. Step 3: Cross multiply
   9,364.98x = 12,923.31 × 5,383.38
4. Step 4: Simplify right side
   9,364.98x = 69,571,088.59
5. Step 5: Solve for x
   x = 69,571,088.59/9,364.98
6. Step 6: Final answer
   x = 7,428.86