Finding the Fourth Proportional to 13,936.32, 19,230.72 and 7,967.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,936.32 : 19,230.72 = 7,967.88 : x
2. Step 2: Convert to fraction form
   13,936.32/19,230.72 = 7,967.88/x
3. Step 3: Cross multiply
   13,936.32x = 19,230.72 × 7,967.88
4. Step 4: Simplify right side
   13,936.32x = 153,228,069.27
5. Step 5: Solve for x
   x = 153,228,069.27/13,936.32
6. Step 6: Final answer
   x = 10,994.87