Finding the Fourth Proportional to 15,239.31, 22,865.04 and 5,379.59

Step by Step Solution

1. Step 1: Write the proportion equation
   15,239.31 : 22,865.04 = 5,379.59 : x
2. Step 2: Convert to fraction form
   15,239.31/22,865.04 = 5,379.59/x
3. Step 3: Cross multiply
   15,239.31x = 22,865.04 × 5,379.59
4. Step 4: Simplify right side
   15,239.31x = 123,004,426.21
5. Step 5: Solve for x
   x = 123,004,426.21/15,239.31
6. Step 6: Final answer
   x = 8,071.52