Finding the Fourth Proportional to 10,404.59, 15,593.28 and 9,085.01

Step by Step Solution

1. Step 1: Write the proportion equation
   10,404.59 : 15,593.28 = 9,085.01 : x
2. Step 2: Convert to fraction form
   10,404.59/15,593.28 = 9,085.01/x
3. Step 3: Cross multiply
   10,404.59x = 15,593.28 × 9,085.01
4. Step 4: Simplify right side
   10,404.59x = 141,665,104.73
5. Step 5: Solve for x
   x = 141,665,104.73/10,404.59
6. Step 6: Final answer
   x = 13,615.64