Finding the Fourth Proportional to 87,040.50, 120,116.04 and 49,317.30

Step by Step Solution

1. Step 1: Write the proportion equation
   87,040.50 : 120,116.04 = 49,317.30 : x
2. Step 2: Convert to fraction form
   87,040.50/120,116.04 = 49,317.30/x
3. Step 3: Cross multiply
   87,040.50x = 120,116.04 × 49,317.30
4. Step 4: Simplify right side
   87,040.50x = 5,923,798,779.49
5. Step 5: Solve for x
   x = 5,923,798,779.49/87,040.50
6. Step 6: Final answer
   x = 68,057.96