Finding the Fourth Proportional to 81,672.27, 122,460.71 and 31,693.98

Step by Step Solution

1. Step 1: Write the proportion equation
   81,672.27 : 122,460.71 = 31,693.98 : x
2. Step 2: Convert to fraction form
   81,672.27/122,460.71 = 31,693.98/x
3. Step 3: Cross multiply
   81,672.27x = 122,460.71 × 31,693.98
4. Step 4: Simplify right side
   81,672.27x = 3,881,267,772.56
5. Step 5: Solve for x
   x = 3,881,267,772.56/81,672.27
6. Step 6: Final answer
   x = 47,522.46