Finding the Fourth Proportional to 25,516.50, 35,216.55 and 14,911.98

Step by Step Solution

1. Step 1: Write the proportion equation
   25,516.50 : 35,216.55 = 14,911.98 : x
2. Step 2: Convert to fraction form
   25,516.50/35,216.55 = 14,911.98/x
3. Step 3: Cross multiply
   25,516.50x = 35,216.55 × 14,911.98
4. Step 4: Simplify right side
   25,516.50x = 525,148,489.27
5. Step 5: Solve for x
   x = 525,148,489.27/25,516.50
6. Step 6: Final answer
   x = 20,580.74