Finding the Fourth Proportional to 11,814.52, 17,722.56 and 3,917

Step by Step Solution

1. Step 1: Write the proportion equation
   11,814.52 : 17,722.56 = 3,917 : x
2. Step 2: Convert to fraction form
   11,814.52/17,722.56 = 3,917/x
3. Step 3: Cross multiply
   11,814.52x = 17,722.56 × 3,917
4. Step 4: Simplify right side
   11,814.52x = 69,419,267.52
5. Step 5: Solve for x
   x = 69,419,267.52/11,814.52
6. Step 6: Final answer
   x = 5,875.76