Finding the Fourth Proportional to 16,835.58, 25,275.24 and 12,942.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,835.58 : 25,275.24 = 12,942.72 : x
2. Step 2: Convert to fraction form
   16,835.58/25,275.24 = 12,942.72/x
3. Step 3: Cross multiply
   16,835.58x = 25,275.24 × 12,942.72
4. Step 4: Simplify right side
   16,835.58x = 327,130,354.25
5. Step 5: Solve for x
   x = 327,130,354.25/16,835.58
6. Step 6: Final answer
   x = 19,430.89