Finding the Fourth Proportional to 16,139.72, 22,267.31 and 10,085.83

Step by Step Solution

1. Step 1: Write the proportion equation
   16,139.72 : 22,267.31 = 10,085.83 : x
2. Step 2: Convert to fraction form
   16,139.72/22,267.31 = 10,085.83/x
3. Step 3: Cross multiply
   16,139.72x = 22,267.31 × 10,085.83
4. Step 4: Simplify right side
   16,139.72x = 224,584,228.43
5. Step 5: Solve for x
   x = 224,584,228.43/16,139.72
6. Step 6: Final answer
   x = 13,915.00