Finding the Fourth Proportional to 142,883.95, 214,298.59 and 71,786.88

Step by Step Solution

1. Step 1: Write the proportion equation
   142,883.95 : 214,298.59 = 71,786.88 : x
2. Step 2: Convert to fraction form
   142,883.95/214,298.59 = 71,786.88/x
3. Step 3: Cross multiply
   142,883.95x = 214,298.59 × 71,786.88
4. Step 4: Simplify right side
   142,883.95x = 15,383,827,164.50
5. Step 5: Solve for x
   x = 15,383,827,164.50/142,883.95
6. Step 6: Final answer
   x = 107,666.59