Finding the Fourth Proportional to 76,747.89, 105,871.55 and 52,833.18

Step by Step Solution

1. Step 1: Write the proportion equation
   76,747.89 : 105,871.55 = 52,833.18 : x
2. Step 2: Convert to fraction form
   76,747.89/105,871.55 = 52,833.18/x
3. Step 3: Cross multiply
   76,747.89x = 105,871.55 × 52,833.18
4. Step 4: Simplify right side
   76,747.89x = 5,593,530,393.86
5. Step 5: Solve for x
   x = 5,593,530,393.86/76,747.89
6. Step 6: Final answer
   x = 72,881.88