Finding the Fourth Proportional to 51,142.60, 70,576.59 and 28,481.86

Step by Step Solution

1. Step 1: Write the proportion equation
   51,142.60 : 70,576.59 = 28,481.86 : x
2. Step 2: Convert to fraction form
   51,142.60/70,576.59 = 28,481.86/x
3. Step 3: Cross multiply
   51,142.60x = 70,576.59 × 28,481.86
4. Step 4: Simplify right side
   51,142.60x = 2,010,152,750.69
5. Step 5: Solve for x
   x = 2,010,152,750.69/51,142.60
6. Step 6: Final answer
   x = 39,304.86