Finding the Fourth Proportional to 81,667.35, 122,443.11 and 31,705.34

Step by Step Solution

1. Step 1: Write the proportion equation
   81,667.35 : 122,443.11 = 31,705.34 : x
2. Step 2: Convert to fraction form
   81,667.35/122,443.11 = 31,705.34/x
3. Step 3: Cross multiply
   81,667.35x = 122,443.11 × 31,705.34
4. Step 4: Simplify right side
   81,667.35x = 3,882,099,820.99
5. Step 5: Solve for x
   x = 3,882,099,820.99/81,667.35
6. Step 6: Final answer
   x = 47,535.52