Finding the Fourth Proportional to 59,158.67, 81,725.32 and 51,187.05

Step by Step Solution

1. Step 1: Write the proportion equation
   59,158.67 : 81,725.32 = 51,187.05 : x
2. Step 2: Convert to fraction form
   59,158.67/81,725.32 = 51,187.05/x
3. Step 3: Cross multiply
   59,158.67x = 81,725.32 × 51,187.05
4. Step 4: Simplify right side
   59,158.67x = 4,183,278,105.09
5. Step 5: Solve for x
   x = 4,183,278,105.09/59,158.67
6. Step 6: Final answer
   x = 70,712.86