Finding the Fourth Proportional to 72,967.89, 109,607.40 and 68,701.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72,967.89 : 109,607.40 = 68,701.83 : x
2. Step 2: Convert to fraction form
   72,967.89/109,607.40 = 68,701.83/x
3. Step 3: Cross multiply
   72,967.89x = 109,607.40 × 68,701.83
4. Step 4: Simplify right side
   72,967.89x = 7,530,228,292.88
5. Step 5: Solve for x
   x = 7,530,228,292.88/72,967.89
6. Step 6: Final answer
   x = 103,199.21