Finding the Fourth Proportional to 57,887.34, 86,858.94 and 50,405.10

Step by Step Solution

1. Step 1: Write the proportion equation
   57,887.34 : 86,858.94 = 50,405.10 : x
2. Step 2: Convert to fraction form
   57,887.34/86,858.94 = 50,405.10/x
3. Step 3: Cross multiply
   57,887.34x = 86,858.94 × 50,405.10
4. Step 4: Simplify right side
   57,887.34x = 4,378,133,556.59
5. Step 5: Solve for x
   x = 4,378,133,556.59/57,887.34
6. Step 6: Final answer
   x = 75,631.97