Finding the Fourth Proportional to 7,047.55, 9,726.21 and 3,904.03

Step by Step Solution

1. Step 1: Write the proportion equation
   7,047.55 : 9,726.21 = 3,904.03 : x
2. Step 2: Convert to fraction form
   7,047.55/9,726.21 = 3,904.03/x
3. Step 3: Cross multiply
   7,047.55x = 9,726.21 × 3,904.03
4. Step 4: Simplify right side
   7,047.55x = 37,971,347.48
5. Step 5: Solve for x
   x = 37,971,347.48/7,047.55
6. Step 6: Final answer
   x = 5,387.88