Finding the Fourth Proportional to 56,573.63, 84,871.37 and 21,510.56

Step by Step Solution

1. Step 1: Write the proportion equation
   56,573.63 : 84,871.37 = 21,510.56 : x
2. Step 2: Convert to fraction form
   56,573.63/84,871.37 = 21,510.56/x
3. Step 3: Cross multiply
   56,573.63x = 84,871.37 × 21,510.56
4. Step 4: Simplify right side
   56,573.63x = 1,825,630,164.76
5. Step 5: Solve for x
   x = 1,825,630,164.76/56,573.63
6. Step 6: Final answer
   x = 32,269.99