Finding the Fourth Proportional to 79,079.42, 109,126.22 and 48,443.20

Step by Step Solution

1. Step 1: Write the proportion equation
   79,079.42 : 109,126.22 = 48,443.20 : x
2. Step 2: Convert to fraction form
   79,079.42/109,126.22 = 48,443.20/x
3. Step 3: Cross multiply
   79,079.42x = 109,126.22 × 48,443.20
4. Step 4: Simplify right side
   79,079.42x = 5,286,423,300.70
5. Step 5: Solve for x
   x = 5,286,423,300.70/79,079.42
6. Step 6: Final answer
   x = 66,849.55