Finding the Fourth Proportional to 142,499.52, 213,914.94 and 83,377.62

Step by Step Solution

1. Step 1: Write the proportion equation
   142,499.52 : 213,914.94 = 83,377.62 : x
2. Step 2: Convert to fraction form
   142,499.52/213,914.94 = 83,377.62/x
3. Step 3: Cross multiply
   142,499.52x = 213,914.94 × 83,377.62
4. Step 4: Simplify right side
   142,499.52x = 17,835,718,579.64
5. Step 5: Solve for x
   x = 17,835,718,579.64/142,499.52
6. Step 6: Final answer
   x = 125,163.36