Finding the Fourth Proportional to 42,359.70, 63,498.24 and 20,167.11

Step by Step Solution

1. Step 1: Write the proportion equation
   42,359.70 : 63,498.24 = 20,167.11 : x
2. Step 2: Convert to fraction form
   42,359.70/63,498.24 = 20,167.11/x
3. Step 3: Cross multiply
   42,359.70x = 63,498.24 × 20,167.11
4. Step 4: Simplify right side
   42,359.70x = 1,280,575,990.89
5. Step 5: Solve for x
   x = 1,280,575,990.89/42,359.70
6. Step 6: Final answer
   x = 30,231.00