Finding the Fourth Proportional to 12,775.60, 17,630.42 and 7,469.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,775.60 : 17,630.42 = 7,469.36 : x
2. Step 2: Convert to fraction form
   12,775.60/17,630.42 = 7,469.36/x
3. Step 3: Cross multiply
   12,775.60x = 17,630.42 × 7,469.36
4. Step 4: Simplify right side
   12,775.60x = 131,687,953.93
5. Step 5: Solve for x
   x = 131,687,953.93/12,775.60
6. Step 6: Final answer
   x = 10,307.77