Finding the Fourth Proportional to 12,199.35, 18,298.94 and 3,434.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,199.35 : 18,298.94 = 3,434.07 : x
2. Step 2: Convert to fraction form
   12,199.35/18,298.94 = 3,434.07/x
3. Step 3: Cross multiply
   12,199.35x = 18,298.94 × 3,434.07
4. Step 4: Simplify right side
   12,199.35x = 62,839,823.72
5. Step 5: Solve for x
   x = 62,839,823.72/12,199.35
6. Step 6: Final answer
   x = 5,151.08