Finding the Fourth Proportional to 79,037.90, 109,072.04 and 42,739.10

Step by Step Solution

1. Step 1: Write the proportion equation
   79,037.90 : 109,072.04 = 42,739.10 : x
2. Step 2: Convert to fraction form
   79,037.90/109,072.04 = 42,739.10/x
3. Step 3: Cross multiply
   79,037.90x = 109,072.04 × 42,739.10
4. Step 4: Simplify right side
   79,037.90x = 4,661,640,824.76
5. Step 5: Solve for x
   x = 4,661,640,824.76/79,037.90
6. Step 6: Final answer
   x = 58,979.82