Finding the Fourth Proportional to 11,683.76, 16,123.47 and 7,205.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,683.76 : 16,123.47 = 7,205.72 : x
2. Step 2: Convert to fraction form
   11,683.76/16,123.47 = 7,205.72/x
3. Step 3: Cross multiply
   11,683.76x = 16,123.47 × 7,205.72
4. Step 4: Simplify right side
   11,683.76x = 116,181,210.25
5. Step 5: Solve for x
   x = 116,181,210.25/11,683.76
6. Step 6: Final answer
   x = 9,943.82