Finding the Fourth Proportional to 56,456.43, 84,688.83 and 19,016.34

Step by Step Solution

1. Step 1: Write the proportion equation
   56,456.43 : 84,688.83 = 19,016.34 : x
2. Step 2: Convert to fraction form
   56,456.43/84,688.83 = 19,016.34/x
3. Step 3: Cross multiply
   56,456.43x = 84,688.83 × 19,016.34
4. Step 4: Simplify right side
   56,456.43x = 1,610,471,585.48
5. Step 5: Solve for x
   x = 1,610,471,585.48/56,456.43
6. Step 6: Final answer
   x = 28,525.92