Finding the Fourth Proportional to 49,130.56, 73,734.72 and 21,448

Step by Step Solution

1. Step 1: Write the proportion equation
   49,130.56 : 73,734.72 = 21,448 : x
2. Step 2: Convert to fraction form
   49,130.56/73,734.72 = 21,448/x
3. Step 3: Cross multiply
   49,130.56x = 73,734.72 × 21,448
4. Step 4: Simplify right side
   49,130.56x = 1,581,462,274.56
5. Step 5: Solve for x
   x = 1,581,462,274.56/49,130.56
6. Step 6: Final answer
   x = 32,188.97