Finding the Fourth Proportional to 17,154.72, 23,678.10 and 10,085.85

Step by Step Solution

1. Step 1: Write the proportion equation
   17,154.72 : 23,678.10 = 10,085.85 : x
2. Step 2: Convert to fraction form
   17,154.72/23,678.10 = 10,085.85/x
3. Step 3: Cross multiply
   17,154.72x = 23,678.10 × 10,085.85
4. Step 4: Simplify right side
   17,154.72x = 238,813,764.89
5. Step 5: Solve for x
   x = 238,813,764.89/17,154.72
6. Step 6: Final answer
   x = 13,921.17