Finding the Fourth Proportional to 79,667.64, 119,462.58 and 28,359.20

Step by Step Solution

1. Step 1: Write the proportion equation
   79,667.64 : 119,462.58 = 28,359.20 : x
2. Step 2: Convert to fraction form
   79,667.64/119,462.58 = 28,359.20/x
3. Step 3: Cross multiply
   79,667.64x = 119,462.58 × 28,359.20
4. Step 4: Simplify right side
   79,667.64x = 3,387,863,497.39
5. Step 5: Solve for x
   x = 3,387,863,497.39/79,667.64
6. Step 6: Final answer
   x = 42,524.96