Finding the Fourth Proportional to 59,003.14, 81,344.70 and 57,168.58

Step by Step Solution

1. Step 1: Write the proportion equation
   59,003.14 : 81,344.70 = 57,168.58 : x
2. Step 2: Convert to fraction form
   59,003.14/81,344.70 = 57,168.58/x
3. Step 3: Cross multiply
   59,003.14x = 81,344.70 × 57,168.58
4. Step 4: Simplify right side
   59,003.14x = 4,650,360,989.53
5. Step 5: Solve for x
   x = 4,650,360,989.53/59,003.14
6. Step 6: Final answer
   x = 78,815.48