Finding the Fourth Proportional to 42,162.85, 63,200.20 and 19,949.77

Step by Step Solution

1. Step 1: Write the proportion equation
   42,162.85 : 63,200.20 = 19,949.77 : x
2. Step 2: Convert to fraction form
   42,162.85/63,200.20 = 19,949.77/x
3. Step 3: Cross multiply
   42,162.85x = 63,200.20 × 19,949.77
4. Step 4: Simplify right side
   42,162.85x = 1,260,829,342.74
5. Step 5: Solve for x
   x = 1,260,829,342.74/42,162.85
6. Step 6: Final answer
   x = 29,903.79