Finding the Fourth Proportional to 51,445.83, 70,997.99 and 28,783.45

Step by Step Solution

1. Step 1: Write the proportion equation
   51,445.83 : 70,997.99 = 28,783.45 : x
2. Step 2: Convert to fraction form
   51,445.83/70,997.99 = 28,783.45/x
3. Step 3: Cross multiply
   51,445.83x = 70,997.99 × 28,783.45
4. Step 4: Simplify right side
   51,445.83x = 2,043,567,040.10
5. Step 5: Solve for x
   x = 2,043,567,040.10/51,445.83
6. Step 6: Final answer
   x = 39,722.69