Finding the Fourth Proportional to 49,209.82, 73,769.31 and 19,620.50

Step by Step Solution

1. Step 1: Write the proportion equation
   49,209.82 : 73,769.31 = 19,620.50 : x
2. Step 2: Convert to fraction form
   49,209.82/73,769.31 = 19,620.50/x
3. Step 3: Cross multiply
   49,209.82x = 73,769.31 × 19,620.50
4. Step 4: Simplify right side
   49,209.82x = 1,447,390,746.86
5. Step 5: Solve for x
   x = 1,447,390,746.86/49,209.82
6. Step 6: Final answer
   x = 29,412.64