Finding the Fourth Proportional to 51,219.50, 70,677.72 and 28,556.34

Step by Step Solution

1. Step 1: Write the proportion equation
   51,219.50 : 70,677.72 = 28,556.34 : x
2. Step 2: Convert to fraction form
   51,219.50/70,677.72 = 28,556.34/x
3. Step 3: Cross multiply
   51,219.50x = 70,677.72 × 28,556.34
4. Step 4: Simplify right side
   51,219.50x = 2,018,297,002.74
5. Step 5: Solve for x
   x = 2,018,297,002.74/51,219.50
6. Step 6: Final answer
   x = 39,404.86