Finding the Fourth Proportional to 79,085.59, 109,138.13 and 43,275.59

Step by Step Solution

1. Step 1: Write the proportion equation
   79,085.59 : 109,138.13 = 43,275.59 : x
2. Step 2: Convert to fraction form
   79,085.59/109,138.13 = 43,275.59/x
3. Step 3: Cross multiply
   79,085.59x = 109,138.13 × 43,275.59
4. Step 4: Simplify right side
   79,085.59x = 4,723,017,023.71
5. Step 5: Solve for x
   x = 4,723,017,023.71/79,085.59
6. Step 6: Final answer
   x = 59,720.32