Finding the Fourth Proportional to 51,976.86, 71,711.69 and 31,812.72

Step by Step Solution

1. Step 1: Write the proportion equation
   51,976.86 : 71,711.69 = 31,812.72 : x
2. Step 2: Convert to fraction form
   51,976.86/71,711.69 = 31,812.72/x
3. Step 3: Cross multiply
   51,976.86x = 71,711.69 × 31,812.72
4. Step 4: Simplify right side
   51,976.86x = 2,281,343,914.70
5. Step 5: Solve for x
   x = 2,281,343,914.70/51,976.86
6. Step 6: Final answer
   x = 43,891.53