Finding the Fourth Proportional to 51,978.62, 71,731.80 and 31,846.60

Step by Step Solution

1. Step 1: Write the proportion equation
   51,978.62 : 71,731.80 = 31,846.60 : x
2. Step 2: Convert to fraction form
   51,978.62/71,731.80 = 31,846.60/x
3. Step 3: Cross multiply
   51,978.62x = 71,731.80 × 31,846.60
4. Step 4: Simplify right side
   51,978.62x = 2,284,413,941.88
5. Step 5: Solve for x
   x = 2,284,413,941.88/51,978.62
6. Step 6: Final answer
   x = 43,949.11