Finding the Fourth Proportional to 79,070.24, 109,152.56 and 50,428.34

Step by Step Solution

1. Step 1: Write the proportion equation
   79,070.24 : 109,152.56 = 50,428.34 : x
2. Step 2: Convert to fraction form
   79,070.24/109,152.56 = 50,428.34/x
3. Step 3: Cross multiply
   79,070.24x = 109,152.56 × 50,428.34
4. Step 4: Simplify right side
   79,070.24x = 5,504,382,397.18
5. Step 5: Solve for x
   x = 5,504,382,397.18/79,070.24
6. Step 6: Final answer
   x = 69,613.83