Finding the Fourth Proportional to 76,013.76, 104,898.24 and 42,479.76

Step by Step Solution

1. Step 1: Write the proportion equation
   76,013.76 : 104,898.24 = 42,479.76 : x
2. Step 2: Convert to fraction form
   76,013.76/104,898.24 = 42,479.76/x
3. Step 3: Cross multiply
   76,013.76x = 104,898.24 × 42,479.76
4. Step 4: Simplify right side
   76,013.76x = 4,456,052,059.62
5. Step 5: Solve for x
   x = 4,456,052,059.62/76,013.76
6. Step 6: Final answer
   x = 58,621.65