Finding the Fourth Proportional to 47,868.49, 66,009.55 and 31,730.18

Step by Step Solution

1. Step 1: Write the proportion equation
   47,868.49 : 66,009.55 = 31,730.18 : x
2. Step 2: Convert to fraction form
   47,868.49/66,009.55 = 31,730.18/x
3. Step 3: Cross multiply
   47,868.49x = 66,009.55 × 31,730.18
4. Step 4: Simplify right side
   47,868.49x = 2,094,494,790.78
5. Step 5: Solve for x
   x = 2,094,494,790.78/47,868.49
6. Step 6: Final answer
   x = 43,755.18