Finding the Fourth Proportional to 142,337.15, 213,446.97 and 58,040.18

Step by Step Solution

1. Step 1: Write the proportion equation
   142,337.15 : 213,446.97 = 58,040.18 : x
2. Step 2: Convert to fraction form
   142,337.15/213,446.97 = 58,040.18/x
3. Step 3: Cross multiply
   142,337.15x = 213,446.97 × 58,040.18
4. Step 4: Simplify right side
   142,337.15x = 12,388,499,492.02
5. Step 5: Solve for x
   x = 12,388,499,492.02/142,337.15
6. Step 6: Final answer
   x = 87,036.31