Finding the Fourth Proportional to 55,561.34, 83,321.06 and 18,112.61

Step by Step Solution

1. Step 1: Write the proportion equation
   55,561.34 : 83,321.06 = 18,112.61 : x
2. Step 2: Convert to fraction form
   55,561.34/83,321.06 = 18,112.61/x
3. Step 3: Cross multiply
   55,561.34x = 83,321.06 × 18,112.61
4. Step 4: Simplify right side
   55,561.34x = 1,509,161,982.31
5. Step 5: Solve for x
   x = 1,509,161,982.31/55,561.34
6. Step 6: Final answer
   x = 27,162.09