Finding the Fourth Proportional to 79,054.72, 109,105.12 and 45,520

Step by Step Solution

1. Step 1: Write the proportion equation
   79,054.72 : 109,105.12 = 45,520 : x
2. Step 2: Convert to fraction form
   79,054.72/109,105.12 = 45,520/x
3. Step 3: Cross multiply
   79,054.72x = 109,105.12 × 45,520
4. Step 4: Simplify right side
   79,054.72x = 4,966,465,062.40
5. Step 5: Solve for x
   x = 4,966,465,062.40/79,054.72
6. Step 6: Final answer
   x = 62,823.13