Finding the Fourth Proportional to 56,669.83, 84,986.37 and 18,710.56

Step by Step Solution

1. Step 1: Write the proportion equation
   56,669.83 : 84,986.37 = 18,710.56 : x
2. Step 2: Convert to fraction form
   56,669.83/84,986.37 = 18,710.56/x
3. Step 3: Cross multiply
   56,669.83x = 84,986.37 × 18,710.56
4. Step 4: Simplify right side
   56,669.83x = 1,590,142,681.30
5. Step 5: Solve for x
   x = 1,590,142,681.30/56,669.83
6. Step 6: Final answer
   x = 28,059.78