Finding the Fourth Proportional to 79,300.64, 109,404.84 and 50,621.36

Step by Step Solution

1. Step 1: Write the proportion equation
   79,300.64 : 109,404.84 = 50,621.36 : x
2. Step 2: Convert to fraction form
   79,300.64/109,404.84 = 50,621.36/x
3. Step 3: Cross multiply
   79,300.64x = 109,404.84 × 50,621.36
4. Step 4: Simplify right side
   79,300.64x = 5,538,221,791.38
5. Step 5: Solve for x
   x = 5,538,221,791.38/79,300.64
6. Step 6: Final answer
   x = 69,838.30