Finding the Fourth Proportional to 53,829, 80,685.60 and 51,344.94

Step by Step Solution

1. Step 1: Write the proportion equation
   53,829 : 80,685.60 = 51,344.94 : x
2. Step 2: Convert to fraction form
   53,829/80,685.60 = 51,344.94/x
3. Step 3: Cross multiply
   53,829x = 80,685.60 × 51,344.94
4. Step 4: Simplify right side
   53,829x = 4,142,797,290.86
5. Step 5: Solve for x
   x = 4,142,797,290.86/53,829
6. Step 6: Final answer
   x = 76,962.18