Finding the Fourth Proportional to 11,346.16, 15,665.32 and 10,147.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,346.16 : 15,665.32 = 10,147.42 : x
2. Step 2: Convert to fraction form
   11,346.16/15,665.32 = 10,147.42/x
3. Step 3: Cross multiply
   11,346.16x = 15,665.32 × 10,147.42
4. Step 4: Simplify right side
   11,346.16x = 158,962,581.47
5. Step 5: Solve for x
   x = 158,962,581.47/11,346.16
6. Step 6: Final answer
   x = 14,010.25