Finding the Fourth Proportional to 142,185.39, 213,153.12 and 58,016.43

Step by Step Solution

1. Step 1: Write the proportion equation
   142,185.39 : 213,153.12 = 58,016.43 : x
2. Step 2: Convert to fraction form
   142,185.39/213,153.12 = 58,016.43/x
3. Step 3: Cross multiply
   142,185.39x = 213,153.12 × 58,016.43
4. Step 4: Simplify right side
   142,185.39x = 12,366,383,065.76
5. Step 5: Solve for x
   x = 12,366,383,065.76/142,185.39
6. Step 6: Final answer
   x = 86,973.66