Finding the Fourth Proportional to 72,609.50, 108,524.96 and 65,477.45

Step by Step Solution

1. Step 1: Write the proportion equation
   72,609.50 : 108,524.96 = 65,477.45 : x
2. Step 2: Convert to fraction form
   72,609.50/108,524.96 = 65,477.45/x
3. Step 3: Cross multiply
   72,609.50x = 108,524.96 × 65,477.45
4. Step 4: Simplify right side
   72,609.50x = 7,105,936,772.14
5. Step 5: Solve for x
   x = 7,105,936,772.14/72,609.50
6. Step 6: Final answer
   x = 97,865.12