Finding the Fourth Proportional to 69,990.44, 104,933.82 and 42,281.96

Step by Step Solution

1. Step 1: Write the proportion equation
   69,990.44 : 104,933.82 = 42,281.96 : x
2. Step 2: Convert to fraction form
   69,990.44/104,933.82 = 42,281.96/x
3. Step 3: Cross multiply
   69,990.44x = 104,933.82 × 42,281.96
4. Step 4: Simplify right side
   69,990.44x = 4,436,807,579.89
5. Step 5: Solve for x
   x = 4,436,807,579.89/69,990.44
6. Step 6: Final answer
   x = 63,391.62