Finding the Fourth Proportional to 79,284.48, 109,409.28 and 47,434.56

Step by Step Solution

1. Step 1: Write the proportion equation
   79,284.48 : 109,409.28 = 47,434.56 : x
2. Step 2: Convert to fraction form
   79,284.48/109,409.28 = 47,434.56/x
3. Step 3: Cross multiply
   79,284.48x = 109,409.28 × 47,434.56
4. Step 4: Simplify right side
   79,284.48x = 5,189,781,056.72
5. Step 5: Solve for x
   x = 5,189,781,056.72/79,284.48
6. Step 6: Final answer
   x = 65,457.72