Finding the Fourth Proportional to 42,308.94, 63,456.24 and 19,821.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,308.94 : 63,456.24 = 19,821.96 : x
2. Step 2: Convert to fraction form
   42,308.94/63,456.24 = 19,821.96/x
3. Step 3: Cross multiply
   42,308.94x = 63,456.24 × 19,821.96
4. Step 4: Simplify right side
   42,308.94x = 1,257,827,051.03
5. Step 5: Solve for x
   x = 1,257,827,051.03/42,308.94
6. Step 6: Final answer
   x = 29,729.58