Finding the Fourth Proportional to 79,410.47, 109,637.74 and 49,228.05

Step by Step Solution

1. Step 1: Write the proportion equation
   79,410.47 : 109,637.74 = 49,228.05 : x
2. Step 2: Convert to fraction form
   79,410.47/109,637.74 = 49,228.05/x
3. Step 3: Cross multiply
   79,410.47x = 109,637.74 × 49,228.05
4. Step 4: Simplify right side
   79,410.47x = 5,397,251,900.47
5. Step 5: Solve for x
   x = 5,397,251,900.47/79,410.47
6. Step 6: Final answer
   x = 67,966.50