Finding the Fourth Proportional to 115,493.89, 159,336.84 and 67,729.81

Step by Step Solution

1. Step 1: Write the proportion equation
   115,493.89 : 159,336.84 = 67,729.81 : x
2. Step 2: Convert to fraction form
   115,493.89/159,336.84 = 67,729.81/x
3. Step 3: Cross multiply
   115,493.89x = 159,336.84 × 67,729.81
4. Step 4: Simplify right side
   115,493.89x = 10,791,853,899.20
5. Step 5: Solve for x
   x = 10,791,853,899.20/115,493.89
6. Step 6: Final answer
   x = 93,440.91