Finding the Fourth Proportional to 12,200.04, 18,300.42 and 3,434.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,200.04 : 18,300.42 = 3,434.76 : x
2. Step 2: Convert to fraction form
   12,200.04/18,300.42 = 3,434.76/x
3. Step 3: Cross multiply
   12,200.04x = 18,300.42 × 3,434.76
4. Step 4: Simplify right side
   12,200.04x = 62,857,550.60
5. Step 5: Solve for x
   x = 62,857,550.60/12,200.04
6. Step 6: Final answer
   x = 5,152.24