Finding the Fourth Proportional to 10,082.59, 15,085.86 and 9,059.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,082.59 : 15,085.86 = 9,059.44 : x
2. Step 2: Convert to fraction form
   10,082.59/15,085.86 = 9,059.44/x
3. Step 3: Cross multiply
   10,082.59x = 15,085.86 × 9,059.44
4. Step 4: Simplify right side
   10,082.59x = 136,669,443.52
5. Step 5: Solve for x
   x = 136,669,443.52/10,082.59
6. Step 6: Final answer
   x = 13,554.99