Finding the Fourth Proportional to 51,097.78, 70,514.88 and 28,741.78

Step by Step Solution

1. Step 1: Write the proportion equation
   51,097.78 : 70,514.88 = 28,741.78 : x
2. Step 2: Convert to fraction form
   51,097.78/70,514.88 = 28,741.78/x
3. Step 3: Cross multiply
   51,097.78x = 70,514.88 × 28,741.78
4. Step 4: Simplify right side
   51,097.78x = 2,026,723,167.69
5. Step 5: Solve for x
   x = 2,026,723,167.69/51,097.78
6. Step 6: Final answer
   x = 39,663.62