Finding the Fourth Proportional to 8,353.89, 11,521.83 and 5,370

Step by Step Solution

1. Step 1: Write the proportion equation
   8,353.89 : 11,521.83 = 5,370 : x
2. Step 2: Convert to fraction form
   8,353.89/11,521.83 = 5,370/x
3. Step 3: Cross multiply
   8,353.89x = 11,521.83 × 5,370
4. Step 4: Simplify right side
   8,353.89x = 61,872,227.10
5. Step 5: Solve for x
   x = 61,872,227.10/8,353.89
6. Step 6: Final answer
   x = 7,406.40