Finding the Fourth Proportional to 76,018.28, 104,905.06 and 42,484.28

Step by Step Solution

1. Step 1: Write the proportion equation
   76,018.28 : 104,905.06 = 42,484.28 : x
2. Step 2: Convert to fraction form
   76,018.28/104,905.06 = 42,484.28/x
3. Step 3: Cross multiply
   76,018.28x = 104,905.06 × 42,484.28
4. Step 4: Simplify right side
   76,018.28x = 4,456,815,942.46
5. Step 5: Solve for x
   x = 4,456,815,942.46/76,018.28
6. Step 6: Final answer
   x = 58,628.21