Finding the Fourth Proportional to 93,145.58, 139,601.21 and 50,449.34

Step by Step Solution

1. Step 1: Write the proportion equation
   93,145.58 : 139,601.21 = 50,449.34 : x
2. Step 2: Convert to fraction form
   93,145.58/139,601.21 = 50,449.34/x
3. Step 3: Cross multiply
   93,145.58x = 139,601.21 × 50,449.34
4. Step 4: Simplify right side
   93,145.58x = 7,042,787,957.45
5. Step 5: Solve for x
   x = 7,042,787,957.45/93,145.58
6. Step 6: Final answer
   x = 75,610.55