Finding the Fourth Proportional to 11,822.72, 17,737.14 and 4,427.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,822.72 : 17,737.14 = 4,427.76 : x
2. Step 2: Convert to fraction form
   11,822.72/17,737.14 = 4,427.76/x
3. Step 3: Cross multiply
   11,822.72x = 17,737.14 × 4,427.76
4. Step 4: Simplify right side
   11,822.72x = 78,535,799.01
5. Step 5: Solve for x
   x = 78,535,799.01/11,822.72
6. Step 6: Final answer
   x = 6,642.79