Finding the Fourth Proportional to 7,404.77, 10,218.42 and 4,047.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,404.77 : 10,218.42 = 4,047.60 : x
2. Step 2: Convert to fraction form
   7,404.77/10,218.42 = 4,047.60/x
3. Step 3: Cross multiply
   7,404.77x = 10,218.42 × 4,047.60
4. Step 4: Simplify right side
   7,404.77x = 41,360,076.79
5. Step 5: Solve for x
   x = 41,360,076.79/7,404.77
6. Step 6: Final answer
   x = 5,585.60