Finding the Fourth Proportional to 85,876, 118,468.56 and 60,739.36

Step by Step Solution

1. Step 1: Write the proportion equation
   85,876 : 118,468.56 = 60,739.36 : x
2. Step 2: Convert to fraction form
   85,876/118,468.56 = 60,739.36/x
3. Step 3: Cross multiply
   85,876x = 118,468.56 × 60,739.36
4. Step 4: Simplify right side
   85,876x = 7,195,704,514.52
5. Step 5: Solve for x
   x = 7,195,704,514.52/85,876
6. Step 6: Final answer
   x = 83,791.80