Finding the Fourth Proportional to 56,119.56, 84,192.72 and 21,059.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,119.56 : 84,192.72 = 21,059.52 : x
2. Step 2: Convert to fraction form
   56,119.56/84,192.72 = 21,059.52/x
3. Step 3: Cross multiply
   56,119.56x = 84,192.72 × 21,059.52
4. Step 4: Simplify right side
   56,119.56x = 1,773,058,270.69
5. Step 5: Solve for x
   x = 1,773,058,270.69/56,119.56
6. Step 6: Final answer
   x = 31,594.30