Finding the Fourth Proportional to 51,092.72, 70,508.58 and 28,736.72

Step by Step Solution

1. Step 1: Write the proportion equation
   51,092.72 : 70,508.58 = 28,736.72 : x
2. Step 2: Convert to fraction form
   51,092.72/70,508.58 = 28,736.72/x
3. Step 3: Cross multiply
   51,092.72x = 70,508.58 × 28,736.72
4. Step 4: Simplify right side
   51,092.72x = 2,026,185,321.06
5. Step 5: Solve for x
   x = 2,026,185,321.06/51,092.72
6. Step 6: Final answer
   x = 39,657.03