Finding the Fourth Proportional to 59,315.78, 81,856.54 and 34,165.28

Step by Step Solution

1. Step 1: Write the proportion equation
   59,315.78 : 81,856.54 = 34,165.28 : x
2. Step 2: Convert to fraction form
   59,315.78/81,856.54 = 34,165.28/x
3. Step 3: Cross multiply
   59,315.78x = 81,856.54 × 34,165.28
4. Step 4: Simplify right side
   59,315.78x = 2,796,651,608.93
5. Step 5: Solve for x
   x = 2,796,651,608.93/59,315.78
6. Step 6: Final answer
   x = 47,148.53