Finding the Fourth Proportional to 3,685.86, 5,534.37 and 3,530.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,685.86 : 5,534.37 = 3,530.34 : x
2. Step 2: Convert to fraction form
   3,685.86/5,534.37 = 3,530.34/x
3. Step 3: Cross multiply
   3,685.86x = 5,534.37 × 3,530.34
4. Step 4: Simplify right side
   3,685.86x = 19,538,207.79
5. Step 5: Solve for x
   x = 19,538,207.79/3,685.86
6. Step 6: Final answer
   x = 5,300.85