Finding the Fourth Proportional to 76,828.46, 114,730.50 and 72,891.86

Step by Step Solution

1. Step 1: Write the proportion equation
   76,828.46 : 114,730.50 = 72,891.86 : x
2. Step 2: Convert to fraction form
   76,828.46/114,730.50 = 72,891.86/x
3. Step 3: Cross multiply
   76,828.46x = 114,730.50 × 72,891.86
4. Step 4: Simplify right side
   76,828.46x = 8,362,919,179.27
5. Step 5: Solve for x
   x = 8,362,919,179.27/76,828.46
6. Step 6: Final answer
   x = 108,851.84