Finding the Fourth Proportional to 72,579.92, 108,827.51 and 28,154.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,579.92 : 108,827.51 = 28,154.76 : x
2. Step 2: Convert to fraction form
   72,579.92/108,827.51 = 28,154.76/x
3. Step 3: Cross multiply
   72,579.92x = 108,827.51 × 28,154.76
4. Step 4: Simplify right side
   72,579.92x = 3,064,012,284.67
5. Step 5: Solve for x
   x = 3,064,012,284.67/72,579.92
6. Step 6: Final answer
   x = 42,215.70