Finding the Fourth Proportional to 15,073.31, 20,801.18 and 8,359.99

Step by Step Solution

1. Step 1: Write the proportion equation
   15,073.31 : 20,801.18 = 8,359.99 : x
2. Step 2: Convert to fraction form
   15,073.31/20,801.18 = 8,359.99/x
3. Step 3: Cross multiply
   15,073.31x = 20,801.18 × 8,359.99
4. Step 4: Simplify right side
   15,073.31x = 173,897,625.69
5. Step 5: Solve for x
   x = 173,897,625.69/15,073.31
6. Step 6: Final answer
   x = 11,536.79