Finding the Fourth Proportional to 47,131.43, 65,071.82 and 31,237.43

Step by Step Solution

1. Step 1: Write the proportion equation
   47,131.43 : 65,071.82 = 31,237.43 : x
2. Step 2: Convert to fraction form
   47,131.43/65,071.82 = 31,237.43/x
3. Step 3: Cross multiply
   47,131.43x = 65,071.82 × 31,237.43
4. Step 4: Simplify right side
   47,131.43x = 2,032,676,174.96
5. Step 5: Solve for x
   x = 2,032,676,174.96/47,131.43
6. Step 6: Final answer
   x = 43,127.83