Finding the Fourth Proportional to 8,356.38, 11,521.89 and 5,372.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,356.38 : 11,521.89 = 5,372.34 : x
2. Step 2: Convert to fraction form
   8,356.38/11,521.89 = 5,372.34/x
3. Step 3: Cross multiply
   8,356.38x = 11,521.89 × 5,372.34
4. Step 4: Simplify right side
   8,356.38x = 61,899,510.52
5. Step 5: Solve for x
   x = 61,899,510.52/8,356.38
6. Step 6: Final answer
   x = 7,407.46