Finding the Fourth Proportional to 55,892.72, 83,847.42 and 18,456.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,892.72 : 83,847.42 = 18,456.75 : x
2. Step 2: Convert to fraction form
   55,892.72/83,847.42 = 18,456.75/x
3. Step 3: Cross multiply
   55,892.72x = 83,847.42 × 18,456.75
4. Step 4: Simplify right side
   55,892.72x = 1,547,550,869.09
5. Step 5: Solve for x
   x = 1,547,550,869.09/55,892.72
6. Step 6: Final answer
   x = 27,687.88