Finding the Fourth Proportional to 146,200.48, 219,300.16 and 57,391.84

Step by Step Solution

1. Step 1: Write the proportion equation
   146,200.48 : 219,300.16 = 57,391.84 : x
2. Step 2: Convert to fraction form
   146,200.48/219,300.16 = 57,391.84/x
3. Step 3: Cross multiply
   146,200.48x = 219,300.16 × 57,391.84
4. Step 4: Simplify right side
   146,200.48x = 12,586,039,694.69
5. Step 5: Solve for x
   x = 12,586,039,694.69/146,200.48
6. Step 6: Final answer
   x = 86,087.54