Finding the Fourth Proportional to 142,497.83, 213,667.88 and 58,317.17

Step by Step Solution

1. Step 1: Write the proportion equation
   142,497.83 : 213,667.88 = 58,317.17 : x
2. Step 2: Convert to fraction form
   142,497.83/213,667.88 = 58,317.17/x
3. Step 3: Cross multiply
   142,497.83x = 213,667.88 × 58,317.17
4. Step 4: Simplify right side
   142,497.83x = 12,460,504,721.57
5. Step 5: Solve for x
   x = 12,460,504,721.57/142,497.83
6. Step 6: Final answer
   x = 87,443.47