Finding the Fourth Proportional to 79,218.32, 109,280.39 and 53,716.05

Step by Step Solution

1. Step 1: Write the proportion equation
   79,218.32 : 109,280.39 = 53,716.05 : x
2. Step 2: Convert to fraction form
   79,218.32/109,280.39 = 53,716.05/x
3. Step 3: Cross multiply
   79,218.32x = 109,280.39 × 53,716.05
4. Step 4: Simplify right side
   79,218.32x = 5,870,110,624.68
5. Step 5: Solve for x
   x = 5,870,110,624.68/79,218.32
6. Step 6: Final answer
   x = 74,100.42