Finding the Fourth Proportional to 49,209.32, 73,768.56 and 19,620

Step by Step Solution

1. Step 1: Write the proportion equation
   49,209.32 : 73,768.56 = 19,620 : x
2. Step 2: Convert to fraction form
   49,209.32/73,768.56 = 19,620/x
3. Step 3: Cross multiply
   49,209.32x = 73,768.56 × 19,620
4. Step 4: Simplify right side
   49,209.32x = 1,447,339,147.20
5. Step 5: Solve for x
   x = 1,447,339,147.20/49,209.32
6. Step 6: Final answer
   x = 29,411.89