Finding the Fourth Proportional to 42,120.52, 63,199.22 and 19,949.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,120.52 : 63,199.22 = 19,949.72 : x
2. Step 2: Convert to fraction form
   42,120.52/63,199.22 = 19,949.72/x
3. Step 3: Cross multiply
   42,120.52x = 63,199.22 × 19,949.72
4. Step 4: Simplify right side
   42,120.52x = 1,260,806,743.22
5. Step 5: Solve for x
   x = 1,260,806,743.22/42,120.52
6. Step 6: Final answer
   x = 29,933.31