Finding the Fourth Proportional to 79,150.72, 118,694.18 and 28,535.34

Step by Step Solution

1. Step 1: Write the proportion equation
   79,150.72 : 118,694.18 = 28,535.34 : x
2. Step 2: Convert to fraction form
   79,150.72/118,694.18 = 28,535.34/x
3. Step 3: Cross multiply
   79,150.72x = 118,694.18 × 28,535.34
4. Step 4: Simplify right side
   79,150.72x = 3,386,978,782.32
5. Step 5: Solve for x
   x = 3,386,978,782.32/79,150.72
6. Step 6: Final answer
   x = 42,791.51