Finding the Fourth Proportional to 59,121.48, 81,561.56 and 39,994.42

Step by Step Solution

1. Step 1: Write the proportion equation
   59,121.48 : 81,561.56 = 39,994.42 : x
2. Step 2: Convert to fraction form
   59,121.48/81,561.56 = 39,994.42/x
3. Step 3: Cross multiply
   59,121.48x = 81,561.56 × 39,994.42
4. Step 4: Simplify right side
   59,121.48x = 3,262,007,286.50
5. Step 5: Solve for x
   x = 3,262,007,286.50/59,121.48
6. Step 6: Final answer
   x = 55,174.66