Finding the Fourth Proportional to 10,016.32, 14,939.80 and 9,438.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,016.32 : 14,939.80 = 9,438.16 : x
2. Step 2: Convert to fraction form
   10,016.32/14,939.80 = 9,438.16/x
3. Step 3: Cross multiply
   10,016.32x = 14,939.80 × 9,438.16
4. Step 4: Simplify right side
   10,016.32x = 141,004,222.77
5. Step 5: Solve for x
   x = 141,004,222.77/10,016.32
6. Step 6: Final answer
   x = 14,077.45