Finding the Fourth Proportional to 59,889.72, 82,681.56 and 39,774.12

Step by Step Solution

1. Step 1: Write the proportion equation
   59,889.72 : 82,681.56 = 39,774.12 : x
2. Step 2: Convert to fraction form
   59,889.72/82,681.56 = 39,774.12/x
3. Step 3: Cross multiply
   59,889.72x = 82,681.56 × 39,774.12
4. Step 4: Simplify right side
   59,889.72x = 3,288,586,289.23
5. Step 5: Solve for x
   x = 3,288,586,289.23/59,889.72
6. Step 6: Final answer
   x = 54,910.70