Finding the Fourth Proportional to 51,082.86, 70,493.67 and 28,726.86

Step by Step Solution

1. Step 1: Write the proportion equation
   51,082.86 : 70,493.67 = 28,726.86 : x
2. Step 2: Convert to fraction form
   51,082.86/70,493.67 = 28,726.86/x
3. Step 3: Cross multiply
   51,082.86x = 70,493.67 × 28,726.86
4. Step 4: Simplify right side
   51,082.86x = 2,025,061,788.98
5. Step 5: Solve for x
   x = 2,025,061,788.98/51,082.86
6. Step 6: Final answer
   x = 39,642.69