Finding the Fourth Proportional to 76,768.72, 105,922.29 and 43,234.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,768.72 : 105,922.29 = 43,234.72 : x
2. Step 2: Convert to fraction form
   76,768.72/105,922.29 = 43,234.72/x
3. Step 3: Cross multiply
   76,768.72x = 105,922.29 × 43,234.72
4. Step 4: Simplify right side
   76,768.72x = 4,579,520,549.91
5. Step 5: Solve for x
   x = 4,579,520,549.91/76,768.72
6. Step 6: Final answer
   x = 59,653.47