Finding the Fourth Proportional to 59,673.76, 82,305.04 and 57,026.72

Step by Step Solution

1. Step 1: Write the proportion equation
   59,673.76 : 82,305.04 = 57,026.72 : x
2. Step 2: Convert to fraction form
   59,673.76/82,305.04 = 57,026.72/x
3. Step 3: Cross multiply
   59,673.76x = 82,305.04 × 57,026.72
4. Step 4: Simplify right side
   59,673.76x = 4,693,586,470.67
5. Step 5: Solve for x
   x = 4,693,586,470.67/59,673.76
6. Step 6: Final answer
   x = 78,654.11