Finding the Fourth Proportional to 7,387.69, 10,194.01 and 4,200.45

Step by Step Solution

1. Step 1: Write the proportion equation
   7,387.69 : 10,194.01 = 4,200.45 : x
2. Step 2: Convert to fraction form
   7,387.69/10,194.01 = 4,200.45/x
3. Step 3: Cross multiply
   7,387.69x = 10,194.01 × 4,200.45
4. Step 4: Simplify right side
   7,387.69x = 42,819,429.30
5. Step 5: Solve for x
   x = 42,819,429.30/7,387.69
6. Step 6: Final answer
   x = 5,796.05