Finding the Fourth Proportional to 10,719.61, 16,081.24 and 3,697.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,719.61 : 16,081.24 = 3,697.72 : x
2. Step 2: Convert to fraction form
   10,719.61/16,081.24 = 3,697.72/x
3. Step 3: Cross multiply
   10,719.61x = 16,081.24 × 3,697.72
4. Step 4: Simplify right side
   10,719.61x = 59,463,922.77
5. Step 5: Solve for x
   x = 59,463,922.77/10,719.61
6. Step 6: Final answer
   x = 5,547.21