Finding the Fourth Proportional to 51,105.76, 70,526.52 and 28,749.76

Step by Step Solution

1. Step 1: Write the proportion equation
   51,105.76 : 70,526.52 = 28,749.76 : x
2. Step 2: Convert to fraction form
   51,105.76/70,526.52 = 28,749.76/x
3. Step 3: Cross multiply
   51,105.76x = 70,526.52 × 28,749.76
4. Step 4: Simplify right side
   51,105.76x = 2,027,620,523.64
5. Step 5: Solve for x
   x = 2,027,620,523.64/51,105.76
6. Step 6: Final answer
   x = 39,674.99