Finding the Fourth Proportional to 42,336.22, 63,496.23 and 21,270.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,336.22 : 63,496.23 = 21,270.42 : x
2. Step 2: Convert to fraction form
   42,336.22/63,496.23 = 21,270.42/x
3. Step 3: Cross multiply
   42,336.22x = 63,496.23 × 21,270.42
4. Step 4: Simplify right side
   42,336.22x = 1,350,591,374.16
5. Step 5: Solve for x
   x = 1,350,591,374.16/42,336.22
6. Step 6: Final answer
   x = 31,901.56