Finding the Fourth Proportional to 256,597.92, 384,932.52 and 79,118.88

Step by Step Solution

1. Step 1: Write the proportion equation
   256,597.92 : 384,932.52 = 79,118.88 : x
2. Step 2: Convert to fraction form
   256,597.92/384,932.52 = 79,118.88/x
3. Step 3: Cross multiply
   256,597.92x = 384,932.52 × 79,118.88
4. Step 4: Simplify right side
   256,597.92x = 30,455,429,857.98
5. Step 5: Solve for x
   x = 30,455,429,857.98/256,597.92
6. Step 6: Final answer
   x = 118,689.31