Finding the Fourth Proportional to 79,707.63, 109,992.69 and 43,899.15

Step by Step Solution

1. Step 1: Write the proportion equation
   79,707.63 : 109,992.69 = 43,899.15 : x
2. Step 2: Convert to fraction form
   79,707.63/109,992.69 = 43,899.15/x
3. Step 3: Cross multiply
   79,707.63x = 109,992.69 × 43,899.15
4. Step 4: Simplify right side
   79,707.63x = 4,828,585,597.21
5. Step 5: Solve for x
   x = 4,828,585,597.21/79,707.63
6. Step 6: Final answer
   x = 60,578.71