Finding the Fourth Proportional to 76,766.72, 105,919.53 and 43,232.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,766.72 : 105,919.53 = 43,232.72 : x
2. Step 2: Convert to fraction form
   76,766.72/105,919.53 = 43,232.72/x
3. Step 3: Cross multiply
   76,766.72x = 105,919.53 × 43,232.72
4. Step 4: Simplify right side
   76,766.72x = 4,579,189,383.02
5. Step 5: Solve for x
   x = 4,579,189,383.02/76,766.72
6. Step 6: Final answer
   x = 59,650.71