Finding the Fourth Proportional to 81,635.35, 122,429.83 and 31,704.79

Step by Step Solution

1. Step 1: Write the proportion equation
   81,635.35 : 122,429.83 = 31,704.79 : x
2. Step 2: Convert to fraction form
   81,635.35/122,429.83 = 31,704.79/x
3. Step 3: Cross multiply
   81,635.35x = 122,429.83 × 31,704.79
4. Step 4: Simplify right side
   81,635.35x = 3,881,612,049.89
5. Step 5: Solve for x
   x = 3,881,612,049.89/81,635.35
6. Step 6: Final answer
   x = 47,548.18