Finding the Fourth Proportional to 79,043.72, 109,074.42 and 43,231.88

Step by Step Solution

1. Step 1: Write the proportion equation
   79,043.72 : 109,074.42 = 43,231.88 : x
2. Step 2: Convert to fraction form
   79,043.72/109,074.42 = 43,231.88/x
3. Step 3: Cross multiply
   79,043.72x = 109,074.42 × 43,231.88
4. Step 4: Simplify right side
   79,043.72x = 4,715,492,236.51
5. Step 5: Solve for x
   x = 4,715,492,236.51/79,043.72
6. Step 6: Final answer
   x = 59,656.76