Finding the Fourth Proportional to 142,153.91, 213,105.20 and 57,984.48

Step by Step Solution

1. Step 1: Write the proportion equation
   142,153.91 : 213,105.20 = 57,984.48 : x
2. Step 2: Convert to fraction form
   142,153.91/213,105.20 = 57,984.48/x
3. Step 3: Cross multiply
   142,153.91x = 213,105.20 × 57,984.48
4. Step 4: Simplify right side
   142,153.91x = 12,356,793,917.37
5. Step 5: Solve for x
   x = 12,356,793,917.37/142,153.91
6. Step 6: Final answer
   x = 86,925.46