Finding the Fourth Proportional to 16,731.53, 25,099.61 and 5,641.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,731.53 : 25,099.61 = 5,641.39 : x
2. Step 2: Convert to fraction form
   16,731.53/25,099.61 = 5,641.39/x
3. Step 3: Cross multiply
   16,731.53x = 25,099.61 × 5,641.39
4. Step 4: Simplify right side
   16,731.53x = 141,596,734.34
5. Step 5: Solve for x
   x = 141,596,734.34/16,731.53
6. Step 6: Final answer
   x = 8,462.87