Finding the Fourth Proportional to 131,593.50, 197,410.77 and 42,826.05

Step by Step Solution

1. Step 1: Write the proportion equation
   131,593.50 : 197,410.77 = 42,826.05 : x
2. Step 2: Convert to fraction form
   131,593.50/197,410.77 = 42,826.05/x
3. Step 3: Cross multiply
   131,593.50x = 197,410.77 × 42,826.05
4. Step 4: Simplify right side
   131,593.50x = 8,454,323,506.56
5. Step 5: Solve for x
   x = 8,454,323,506.56/131,593.50
6. Step 6: Final answer
   x = 64,245.75