Finding the Fourth Proportional to 142,086.79, 213,134.76 and 74,601.73

Step by Step Solution

1. Step 1: Write the proportion equation
   142,086.79 : 213,134.76 = 74,601.73 : x
2. Step 2: Convert to fraction form
   142,086.79/213,134.76 = 74,601.73/x
3. Step 3: Cross multiply
   142,086.79x = 213,134.76 × 74,601.73
4. Step 4: Simplify right side
   142,086.79x = 15,900,221,819.13
5. Step 5: Solve for x
   x = 15,900,221,819.13/142,086.79
6. Step 6: Final answer
   x = 111,905.00