Finding the Fourth Proportional to 149,834.72, 206,772.22 and 81,852.20

Step by Step Solution

1. Step 1: Write the proportion equation
   149,834.72 : 206,772.22 = 81,852.20 : x
2. Step 2: Convert to fraction form
   149,834.72/206,772.22 = 81,852.20/x
3. Step 3: Cross multiply
   149,834.72x = 206,772.22 × 81,852.20
4. Step 4: Simplify right side
   149,834.72x = 16,924,761,105.88
5. Step 5: Solve for x
   x = 16,924,761,105.88/149,834.72
6. Step 6: Final answer
   x = 112,956.20