Finding the Fourth Proportional to 72,996.72, 100,683.61 and 47,455.98

Step by Step Solution

1. Step 1: Write the proportion equation
   72,996.72 : 100,683.61 = 47,455.98 : x
2. Step 2: Convert to fraction form
   72,996.72/100,683.61 = 47,455.98/x
3. Step 3: Cross multiply
   72,996.72x = 100,683.61 × 47,455.98
4. Step 4: Simplify right side
   72,996.72x = 4,778,039,382.49
5. Step 5: Solve for x
   x = 4,778,039,382.49/72,996.72
6. Step 6: Final answer
   x = 65,455.54