Finding the Fourth Proportional to 83,100.33, 124,651.71 and 20,770.83

Step by Step Solution

1. Step 1: Write the proportion equation
   83,100.33 : 124,651.71 = 20,770.83 : x
2. Step 2: Convert to fraction form
   83,100.33/124,651.71 = 20,770.83/x
3. Step 3: Cross multiply
   83,100.33x = 124,651.71 × 20,770.83
4. Step 4: Simplify right side
   83,100.33x = 2,589,119,477.62
5. Step 5: Solve for x
   x = 2,589,119,477.62/83,100.33
6. Step 6: Final answer
   x = 31,156.55