Finding the Fourth Proportional to 42,435.83, 63,556.85 and 20,264.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,435.83 : 63,556.85 = 20,264.82 : x
2. Step 2: Convert to fraction form
   42,435.83/63,556.85 = 20,264.82/x
3. Step 3: Cross multiply
   42,435.83x = 63,556.85 × 20,264.82
4. Step 4: Simplify right side
   42,435.83x = 1,287,967,937.34
5. Step 5: Solve for x
   x = 1,287,967,937.34/42,435.83
6. Step 6: Final answer
   x = 30,350.95