Finding the Fourth Proportional to 79,242.72, 109,354.32 and 45,708

Step by Step Solution

1. Step 1: Write the proportion equation
   79,242.72 : 109,354.32 = 45,708 : x
2. Step 2: Convert to fraction form
   79,242.72/109,354.32 = 45,708/x
3. Step 3: Cross multiply
   79,242.72x = 109,354.32 × 45,708
4. Step 4: Simplify right side
   79,242.72x = 4,998,367,258.56
5. Step 5: Solve for x
   x = 4,998,367,258.56/79,242.72
6. Step 6: Final answer
   x = 63,076.67