Finding the Fourth Proportional to 142,269.39, 213,433.55 and 58,029.79

Step by Step Solution

1. Step 1: Write the proportion equation
   142,269.39 : 213,433.55 = 58,029.79 : x
2. Step 2: Convert to fraction form
   142,269.39/213,433.55 = 58,029.79/x
3. Step 3: Cross multiply
   142,269.39x = 213,433.55 × 58,029.79
4. Step 4: Simplify right side
   142,269.39x = 12,385,504,085.45
5. Step 5: Solve for x
   x = 12,385,504,085.45/142,269.39
6. Step 6: Final answer
   x = 87,056.70