Finding the Fourth Proportional to 85,061.94, 127,456.82 and 72,542.58

Step by Step Solution

1. Step 1: Write the proportion equation
   85,061.94 : 127,456.82 = 72,542.58 : x
2. Step 2: Convert to fraction form
   85,061.94/127,456.82 = 72,542.58/x
3. Step 3: Cross multiply
   85,061.94x = 127,456.82 × 72,542.58
4. Step 4: Simplify right side
   85,061.94x = 9,246,046,561.40
5. Step 5: Solve for x
   x = 9,246,046,561.40/85,061.94
6. Step 6: Final answer
   x = 108,697.81