Finding the Fourth Proportional to 11,901.32, 16,386.36 and 10,105.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,901.32 : 16,386.36 = 10,105.25 : x
2. Step 2: Convert to fraction form
   11,901.32/16,386.36 = 10,105.25/x
3. Step 3: Cross multiply
   11,901.32x = 16,386.36 × 10,105.25
4. Step 4: Simplify right side
   11,901.32x = 165,588,182.46
5. Step 5: Solve for x
   x = 165,588,182.46/11,901.32
6. Step 6: Final answer
   x = 13,913.44