Finding the Fourth Proportional to 42,042.69, 63,079.41 and 19,564.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,042.69 : 63,079.41 = 19,564.09 : x
2. Step 2: Convert to fraction form
   42,042.69/63,079.41 = 19,564.09/x
3. Step 3: Cross multiply
   42,042.69x = 63,079.41 × 19,564.09
4. Step 4: Simplify right side
   42,042.69x = 1,234,091,406.60
5. Step 5: Solve for x
   x = 1,234,091,406.60/42,042.69
6. Step 6: Final answer
   x = 29,353.29