Finding the Fourth Proportional to 12,767.90, 17,621.81 and 7,461.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,767.90 : 17,621.81 = 7,461.69 : x
2. Step 2: Convert to fraction form
   12,767.90/17,621.81 = 7,461.69/x
3. Step 3: Cross multiply
   12,767.90x = 17,621.81 × 7,461.69
4. Step 4: Simplify right side
   12,767.90x = 131,488,483.46
5. Step 5: Solve for x
   x = 131,488,483.46/12,767.90
6. Step 6: Final answer
   x = 10,298.36