Finding the Fourth Proportional to 16,916.45, 25,378.31 and 7,056.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,916.45 : 25,378.31 = 7,056.72 : x
2. Step 2: Convert to fraction form
   16,916.45/25,378.31 = 7,056.72/x
3. Step 3: Cross multiply
   16,916.45x = 25,378.31 × 7,056.72
4. Step 4: Simplify right side
   16,916.45x = 179,087,645.39
5. Step 5: Solve for x
   x = 179,087,645.39/16,916.45
6. Step 6: Final answer
   x = 10,586.60