Finding the Fourth Proportional to 57,111.96, 85,677.12 and 19,662.83

Step by Step Solution

1. Step 1: Write the proportion equation
   57,111.96 : 85,677.12 = 19,662.83 : x
2. Step 2: Convert to fraction form
   57,111.96/85,677.12 = 19,662.83/x
3. Step 3: Cross multiply
   57,111.96x = 85,677.12 × 19,662.83
4. Step 4: Simplify right side
   57,111.96x = 1,684,654,217.06
5. Step 5: Solve for x
   x = 1,684,654,217.06/57,111.96
6. Step 6: Final answer
   x = 29,497.40