Finding the Fourth Proportional to 12,969.55, 19,460.69 and 4,650.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,969.55 : 19,460.69 = 4,650.22 : x
2. Step 2: Convert to fraction form
   12,969.55/19,460.69 = 4,650.22/x
3. Step 3: Cross multiply
   12,969.55x = 19,460.69 × 4,650.22
4. Step 4: Simplify right side
   12,969.55x = 90,496,489.85
5. Step 5: Solve for x
   x = 90,496,489.85/12,969.55
6. Step 6: Final answer
   x = 6,977.61