Finding the Fourth Proportional to 73,982.47, 102,096.56 and 39,991.62

Step by Step Solution

1. Step 1: Write the proportion equation
   73,982.47 : 102,096.56 = 39,991.62 : x
2. Step 2: Convert to fraction form
   73,982.47/102,096.56 = 39,991.62/x
3. Step 3: Cross multiply
   73,982.47x = 102,096.56 × 39,991.62
4. Step 4: Simplify right side
   73,982.47x = 4,083,006,830.83
5. Step 5: Solve for x
   x = 4,083,006,830.83/73,982.47
6. Step 6: Final answer
   x = 55,188.84