Finding the Fourth Proportional to 54,047.84, 80,528.15 and 51,029.78

Step by Step Solution

1. Step 1: Write the proportion equation
   54,047.84 : 80,528.15 = 51,029.78 : x
2. Step 2: Convert to fraction form
   54,047.84/80,528.15 = 51,029.78/x
3. Step 3: Cross multiply
   54,047.84x = 80,528.15 × 51,029.78
4. Step 4: Simplify right side
   54,047.84x = 4,109,333,778.31
5. Step 5: Solve for x
   x = 4,109,333,778.31/54,047.84
6. Step 6: Final answer
   x = 76,031.42