Finding the Fourth Proportional to 12,200.10, 18,300.06 and 3,434.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,200.10 : 18,300.06 = 3,434.82 : x
2. Step 2: Convert to fraction form
   12,200.10/18,300.06 = 3,434.82/x
3. Step 3: Cross multiply
   12,200.10x = 18,300.06 × 3,434.82
4. Step 4: Simplify right side
   12,200.10x = 62,857,412.09
5. Step 5: Solve for x
   x = 62,857,412.09/12,200.10
6. Step 6: Final answer
   x = 5,152.20