Finding the Fourth Proportional to 47,830.74, 65,937.30 and 31,671

Step by Step Solution

1. Step 1: Write the proportion equation
   47,830.74 : 65,937.30 = 31,671 : x
2. Step 2: Convert to fraction form
   47,830.74/65,937.30 = 31,671/x
3. Step 3: Cross multiply
   47,830.74x = 65,937.30 × 31,671
4. Step 4: Simplify right side
   47,830.74x = 2,088,300,228.30
5. Step 5: Solve for x
   x = 2,088,300,228.30/47,830.74
6. Step 6: Final answer
   x = 43,660.21