Finding the Fourth Proportional to 79,089.57, 109,143.60 and 43,279.59

Step by Step Solution

1. Step 1: Write the proportion equation
   79,089.57 : 109,143.60 = 43,279.59 : x
2. Step 2: Convert to fraction form
   79,089.57/109,143.60 = 43,279.59/x
3. Step 3: Cross multiply
   79,089.57x = 109,143.60 × 43,279.59
4. Step 4: Simplify right side
   79,089.57x = 4,723,690,259.12
5. Step 5: Solve for x
   x = 4,723,690,259.12/79,089.57
6. Step 6: Final answer
   x = 59,725.83