Finding the Fourth Proportional to 47,059.65, 64,945.73 and 31,116.45

Step by Step Solution

1. Step 1: Write the proportion equation
   47,059.65 : 64,945.73 = 31,116.45 : x
2. Step 2: Convert to fraction form
   47,059.65/64,945.73 = 31,116.45/x
3. Step 3: Cross multiply
   47,059.65x = 64,945.73 × 31,116.45
4. Step 4: Simplify right side
   47,059.65x = 2,020,880,560.26
5. Step 5: Solve for x
   x = 2,020,880,560.26/47,059.65
6. Step 6: Final answer
   x = 42,942.96