Finding the Fourth Proportional to 87,231.38, 120,258.37 and 58,892.18

Step by Step Solution

1. Step 1: Write the proportion equation
   87,231.38 : 120,258.37 = 58,892.18 : x
2. Step 2: Convert to fraction form
   87,231.38/120,258.37 = 58,892.18/x
3. Step 3: Cross multiply
   87,231.38x = 120,258.37 × 58,892.18
4. Step 4: Simplify right side
   87,231.38x = 7,082,277,572.55
5. Step 5: Solve for x
   x = 7,082,277,572.55/87,231.38
6. Step 6: Final answer
   x = 81,189.56