Finding the Fourth Proportional to 56,002.28, 83,976.42 and 20,462.36

Step by Step Solution

1. Step 1: Write the proportion equation
   56,002.28 : 83,976.42 = 20,462.36 : x
2. Step 2: Convert to fraction form
   56,002.28/83,976.42 = 20,462.36/x
3. Step 3: Cross multiply
   56,002.28x = 83,976.42 × 20,462.36
4. Step 4: Simplify right side
   56,002.28x = 1,718,355,737.55
5. Step 5: Solve for x
   x = 1,718,355,737.55/56,002.28
6. Step 6: Final answer
   x = 30,683.67