Finding the Fourth Proportional to 55,131.58, 82,724.69 and 21,850.91

Step by Step Solution

1. Step 1: Write the proportion equation
   55,131.58 : 82,724.69 = 21,850.91 : x
2. Step 2: Convert to fraction form
   55,131.58/82,724.69 = 21,850.91/x
3. Step 3: Cross multiply
   55,131.58x = 82,724.69 × 21,850.91
4. Step 4: Simplify right side
   55,131.58x = 1,807,609,396.97
5. Step 5: Solve for x
   x = 1,807,609,396.97/55,131.58
6. Step 6: Final answer
   x = 32,787.19