Finding the Fourth Proportional to 11,558.52, 15,981.86 and 10,082.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,558.52 : 15,981.86 = 10,082.30 : x
2. Step 2: Convert to fraction form
   11,558.52/15,981.86 = 10,082.30/x
3. Step 3: Cross multiply
   11,558.52x = 15,981.86 × 10,082.30
4. Step 4: Simplify right side
   11,558.52x = 161,133,776.76
5. Step 5: Solve for x
   x = 161,133,776.76/11,558.52
6. Step 6: Final answer
   x = 13,940.69