Finding the Fourth Proportional to 83,353.74, 124,904.31 and 55,172.82

Step by Step Solution

1. Step 1: Write the proportion equation
   83,353.74 : 124,904.31 = 55,172.82 : x
2. Step 2: Convert to fraction form
   83,353.74/124,904.31 = 55,172.82/x
3. Step 3: Cross multiply
   83,353.74x = 124,904.31 × 55,172.82
4. Step 4: Simplify right side
   83,353.74x = 6,891,323,012.85
5. Step 5: Solve for x
   x = 6,891,323,012.85/83,353.74
6. Step 6: Final answer
   x = 82,675.63