Finding the Fourth Proportional to 154,131.87, 231,196.71 and 79,272.88

Step by Step Solution

1. Step 1: Write the proportion equation
   154,131.87 : 231,196.71 = 79,272.88 : x
2. Step 2: Convert to fraction form
   154,131.87/231,196.71 = 79,272.88/x
3. Step 3: Cross multiply
   154,131.87x = 231,196.71 × 79,272.88
4. Step 4: Simplify right side
   154,131.87x = 18,327,629,048.22
5. Step 5: Solve for x
   x = 18,327,629,048.22/154,131.87
6. Step 6: Final answer
   x = 118,908.76