Finding the Fourth Proportional to 10,938.81, 16,404.17 and 3,917.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,938.81 : 16,404.17 = 3,917.73 : x
2. Step 2: Convert to fraction form
   10,938.81/16,404.17 = 3,917.73/x
3. Step 3: Cross multiply
   10,938.81x = 16,404.17 × 3,917.73
4. Step 4: Simplify right side
   10,938.81x = 64,267,089.35
5. Step 5: Solve for x
   x = 64,267,089.35/10,938.81
6. Step 6: Final answer
   x = 5,875.14