Finding the Fourth Proportional to 103,212, 142,432.56 and 58,500

Step by Step Solution

1. Step 1: Write the proportion equation
   103,212 : 142,432.56 = 58,500 : x
2. Step 2: Convert to fraction form
   103,212/142,432.56 = 58,500/x
3. Step 3: Cross multiply
   103,212x = 142,432.56 × 58,500
4. Step 4: Simplify right side
   103,212x = 8,332,304,760
5. Step 5: Solve for x
   x = 8,332,304,760/103,212
6. Step 6: Final answer
   x = 80,730