Finding the Fourth Proportional to 115,607.58, 159,539.55 and 67,861.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,607.58 : 159,539.55 = 67,861.72 : x
2. Step 2: Convert to fraction form
   115,607.58/159,539.55 = 67,861.72/x
3. Step 3: Cross multiply
   115,607.58x = 159,539.55 × 67,861.72
4. Step 4: Simplify right side
   115,607.58x = 10,826,628,271.03
5. Step 5: Solve for x
   x = 10,826,628,271.03/115,607.58
6. Step 6: Final answer
   x = 93,649.81